612653140 has 48 divisors (see below), whose sum is σ = 1486102464. Its totient is φ = 209676800.

The previous prime is 612653053. The next prime is 612653143. The reversal of 612653140 is 41356216.

It is a junction number, because it is equal to n+sod(n) for n = 612653099 and 612653108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612653143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78166 + ... + 85645.

It is an arithmetic number, because the mean of its divisors is an integer number (30960468).

Almost surely, 2^612653140 is an apocalyptic number.

It is an amenable number.

612653140 is an abundant number, since it is smaller than the sum of its proper divisors (873449324).

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

612653140 is a wasteful number, since it uses less digits than its factorization.

612653140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163848 (or 163846 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 612653140 is about 24751.8310433794. The cubic root of 612653140 is about 849.3203979578.

The spelling of 612653140 in words is "six hundred twelve million, six hundred fifty-three thousand, one hundred forty".