612521932 has 48 divisors (see below), whose sum is σ = 1214760960. Its totient is φ = 267724800.

The previous prime is 612521929. The next prime is 612521933. The reversal of 612521932 is 239125216.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 612521894 and 612521903.

It is not an unprimeable number, because it can be changed into a prime (612521933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226444 + ... + 229132.

It is an arithmetic number, because the mean of its divisors is an integer number (25307520).

Almost surely, 2^612521932 is an apocalyptic number.

612521932 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

612521932 is a deficient number, since it is larger than the sum of its proper divisors (602239028).

612521932 is a wasteful number, since it uses less digits than its factorization.

612521932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2902 (or 2900 counting only the distinct ones).

The product of its digits is 6480, while the sum is 31.

The square root of 612521932 is about 24749.1804308749. The cubic root of 612521932 is about 849.2597624586.

The spelling of 612521932 in words is "six hundred twelve million, five hundred twenty-one thousand, nine hundred thirty-two".