612256133 has 8 divisors (see below), whose sum is σ = 644736000. Its totient is φ = 579801888.

The previous prime is 612256123. The next prime is 612256181. The reversal of 612256133 is 331652216.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 612256133 - 2¹⁶ = 612190597 is a prime.

It is a super-2 number, since 2×612256133² = 749715144792227378, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 612256096 and 612256105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612256123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60860 + ... + 70202.

It is an arithmetic number, because the mean of its divisors is an integer number (80592000).

Almost surely, 2^612256133 is an apocalyptic number.

It is an amenable number.

612256133 is a deficient number, since it is larger than the sum of its proper divisors (32479867).

612256133 is a wasteful number, since it uses less digits than its factorization.

612256133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12811.

The product of its digits is 6480, while the sum is 29.

The square root of 612256133 is about 24743.8099936125. The cubic root of 612256133 is about 849.1369015218.

The spelling of 612256133 in words is "six hundred twelve million, two hundred fifty-six thousand, one hundred thirty-three".