612492291 has 6 divisors (see below), whose sum is σ = 884711100. Its totient is φ = 408328188.

The previous prime is 612492263. The next prime is 612492299. The reversal of 612492291 is 192294216.

It is not a de Polignac number, because 612492291 - 2⁵ = 612492259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (612492299) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34027341 + ... + 34027358.

It is an arithmetic number, because the mean of its divisors is an integer number (147451850).

Almost surely, 2^612492291 is an apocalyptic number.

612492291 is a deficient number, since it is larger than the sum of its proper divisors (272218809).

612492291 is a wasteful number, since it uses less digits than its factorization.

612492291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68054705 (or 68054702 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 612492291 is about 24748.5815957198. The cubic root of 612492291 is about 849.2460631860.

The spelling of 612492291 in words is "six hundred twelve million, four hundred ninety-two thousand, two hundred ninety-one".