612412172 has 6 divisors (see below), whose sum is σ = 1071721308. Its totient is φ = 306206084.

The previous prime is 612412159. The next prime is 612412183. The reversal of 612412172 is 271214216.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76551518 + ... + 76551525.

It is an arithmetic number, because the mean of its divisors is an integer number (178620218).

Almost surely, 2^612412172 is an apocalyptic number.

It is an amenable number.

612412172 is a deficient number, since it is larger than the sum of its proper divisors (459309136).

612412172 is a wasteful number, since it uses less digits than its factorization.

612412172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153103047 (or 153103045 counting only the distinct ones).

The product of its digits is 1344, while the sum is 26.

The square root of 612412172 is about 24746.9628843622. The cubic root of 612412172 is about 849.2090321282.

Adding to 612412172 its reverse (271214216), we get a palindrome (883626388).

The spelling of 612412172 in words is "six hundred twelve million, four hundred twelve thousand, one hundred seventy-two".