612256145 has 16 divisors (see below), whose sum is σ = 753151872. Its totient is φ = 477550080.

The previous prime is 612256123. The next prime is 612256181. The reversal of 612256145 is 541652216.

It is not a de Polignac number, because 612256145 - 2²⁴ = 595478929 is a prime.

It is a super-2 number, since 2×612256145² = 749715174180522050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133409 + ... + 137921.

It is an arithmetic number, because the mean of its divisors is an integer number (47071992).

Almost surely, 2^612256145 is an apocalyptic number.

It is an amenable number.

612256145 is a deficient number, since it is larger than the sum of its proper divisors (140895727).

612256145 is a wasteful number, since it uses less digits than its factorization.

612256145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5192.

The product of its digits is 14400, while the sum is 32.

The square root of 612256145 is about 24743.8102360974. The cubic root of 612256145 is about 849.1369070694.

The spelling of 612256145 in words is "six hundred twelve million, two hundred fifty-six thousand, one hundred forty-five".