1612215372 has 54 divisors (see below), whose sum is σ = 3841022388. Its totient is φ = 526324128.

The previous prime is 1612215361. The next prime is 1612215377. The reversal of 1612215372 is 2735122161.

It is not an unprimeable number, because it can be changed into a prime (1612215377) 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 17 ways as a sum of consecutive naturals, for example, 9319078 + ... + 9319250.

Almost surely, 2^1612215372 is an apocalyptic number.

1612215372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1612215372 is an abundant number, since it is smaller than the sum of its proper divisors (2228807016).

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

1612215372 is an equidigital number, since it uses as much as digits as its factorization.

1612215372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487 (or 245 counting only the distinct ones).

The product of its digits is 5040, while the sum is 30.

The square root of 1612215372 is about 40152.4018210617. The cubic root of 1612215372 is about 1172.5760494890.

The spelling of 1612215372 in words is "one billion, six hundred twelve million, two hundred fifteen thousand, three hundred seventy-two".