612414921 has 4 divisors (see below), whose sum is σ = 816553232. Its totient is φ = 408276612.

The previous prime is 612414917. The next prime is 612414937. The reversal of 612414921 is 129414216.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 612414921 - 2² = 612414917 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (612414911) 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, 102069151 + ... + 102069156.

It is an arithmetic number, because the mean of its divisors is an integer number (204138308).

Almost surely, 2^612414921 is an apocalyptic number.

It is an amenable number.

612414921 is a deficient number, since it is larger than the sum of its proper divisors (204138311).

612414921 is a wasteful number, since it uses less digits than its factorization.

612414921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204138310.

The product of its digits is 3456, while the sum is 30.

The square root of 612414921 is about 24747.0184264691. The cubic root of 612414921 is about 849.2103027714.

The spelling of 612414921 in words is "six hundred twelve million, four hundred fourteen thousand, nine hundred twenty-one".