1612022500 has 135 divisors (see below), whose sum is σ = 3928580733. Its totient is φ = 578160000.

The previous prime is 1612022441. The next prime is 1612022509. The reversal of 1612022500 is 52202161.

The square root of 1612022500 is 40150.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 1143386596 + 468635904 = 33814^2 + 21648^2 .

It is a hoax number, since the sum of its digits (19) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1612022509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 22082464 + ... + 22082536.

Almost surely, 2^1612022500 is an apocalyptic number.

1612022500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1612022500 is the 40150-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1612022500

1612022500 is an abundant number, since it is smaller than the sum of its proper divisors (2316558233).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1612022500 is an equidigital number, since it uses as much as digits as its factorization.

1612022500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192 (or 91 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The cubic root of 1612022500 is about 1172.5292885515.

Adding to 1612022500 its reverse (52202161), we get a palindrome (1664224661).

The spelling of 1612022500 in words is "one billion, six hundred twelve million, twenty-two thousand, five hundred".