612734121 has 24 divisors (see below), whose sum is σ = 891704736. Its totient is φ = 405437760.

The previous prime is 612734071. The next prime is 612734123. The reversal of 612734121 is 121437216.

612734121 is a `hidden beast` number, since 612 + 7 + 3 + 41 + 2 + 1 = 666.

It is not a de Polignac number, because 612734121 - 2¹⁰ = 612733097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (612734123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1247686 + ... + 1248176.

It is an arithmetic number, because the mean of its divisors is an integer number (37154364).

Almost surely, 2^612734121 is an apocalyptic number.

It is an amenable number.

612734121 is a deficient number, since it is larger than the sum of its proper divisors (278970615).

612734121 is a wasteful number, since it uses less digits than its factorization.

612734121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1253 (or 1250 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 612734121 is about 24753.4668481003. The cubic root of 612734121 is about 849.3578176006.

The spelling of 612734121 in words is "six hundred twelve million, seven hundred thirty-four thousand, one hundred twenty-one".