612158652 has 72 divisors (see below), whose sum is σ = 1778361312. Its totient is φ = 173923200.

The previous prime is 612158633. The next prime is 612158653. The reversal of 612158652 is 256851216.

612158652 is a `hidden beast` number, since 6 + 1 + 21 + 586 + 52 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612158653) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38902 + ... + 52322.

Almost surely, 2^612158652 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 612158652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (889180656).

612158652 is an abundant number, since it is smaller than the sum of its proper divisors (1166202660).

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

612158652 is a wasteful number, since it uses less digits than its factorization.

612158652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13619 (or 13614 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 612158652 is about 24741.8401094179. The cubic root of 612158652 is about 849.0918337235.

The spelling of 612158652 in words is "six hundred twelve million, one hundred fifty-eight thousand, six hundred fifty-two".