612065953 has 4 divisors (see below), whose sum is σ = 631810048. Its totient is φ = 592321860.

The previous prime is 612065911. The next prime is 612065957. The reversal of 612065953 is 359560216.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-612065953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (612065957) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9872001 + ... + 9872062.

It is an arithmetic number, because the mean of its divisors is an integer number (157952512).

Almost surely, 2^612065953 is an apocalyptic number.

It is an amenable number.

612065953 is a deficient number, since it is larger than the sum of its proper divisors (19744095).

612065953 is a wasteful number, since it uses less digits than its factorization.

612065953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19744094.

The product of its (nonzero) digits is 48600, while the sum is 37.

The square root of 612065953 is about 24739.9667138014. The cubic root of 612065953 is about 849.0489723199.

The spelling of 612065953 in words is "six hundred twelve million, sixty-five thousand, nine hundred fifty-three".