1220523150 has 96 divisors (see below), whose sum is σ = 3773829888. Its totient is φ = 253612800.

The previous prime is 1220523133. The next prime is 1220523151. The reversal of 1220523150 is 513250221.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220523151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 41287 + ... + 64386.

It is an arithmetic number, because the mean of its divisors is an integer number (39310728).

Almost surely, 2^1220523150 is an apocalyptic number.

1220523150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220523150 is an abundant number, since it is smaller than the sum of its proper divisors (2553306738).

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

1220523150 is a wasteful number, since it uses less digits than its factorization.

1220523150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105706 (or 105701 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 1220523150 is about 34935.9864609546. The cubic root of 1220523150 is about 1068.6824409263.

Adding to 1220523150 its reverse (513250221), we get a palindrome (1733773371).

The spelling of 1220523150 in words is "one billion, two hundred twenty million, five hundred twenty-three thousand, one hundred fifty".