612554231 has 4 divisors (see below), whose sum is σ = 624111912. Its totient is φ = 600996552.

The previous prime is 612554213. The next prime is 612554233. The reversal of 612554231 is 132455216.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-612554231 is a prime.

It is a super-2 number, since 2×612554231² = 750445371832002722, 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 = 612554194 and 612554203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612554233) 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, 5778761 + ... + 5778866.

It is an arithmetic number, because the mean of its divisors is an integer number (156027978).

Almost surely, 2^612554231 is an apocalyptic number.

612554231 is a deficient number, since it is larger than the sum of its proper divisors (11557681).

612554231 is a wasteful number, since it uses less digits than its factorization.

612554231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11557680.

The product of its digits is 7200, while the sum is 29.

The square root of 612554231 is about 24749.8329489312. The cubic root of 612554231 is about 849.2746896841.

The spelling of 612554231 in words is "six hundred twelve million, five hundred fifty-four thousand, two hundred thirty-one".