612911073 has 4 divisors (see below), whose sum is σ = 817214768. Its totient is φ = 408607380.

The previous prime is 612911059. The next prime is 612911077. The reversal of 612911073 is 370119216.

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 612911073 - 2⁵ = 612911041 is a prime.

It is a super-2 number, since 2×612911073² = 751319966812022658, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 612911073.

It is not an unprimeable number, because it can be changed into a prime (612911077) 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, 102151843 + ... + 102151848.

It is an arithmetic number, because the mean of its divisors is an integer number (204303692).

Almost surely, 2^612911073 is an apocalyptic number.

It is an amenable number.

612911073 is a deficient number, since it is larger than the sum of its proper divisors (204303695).

612911073 is a wasteful number, since it uses less digits than its factorization.

612911073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204303694.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 612911073 is about 24757.0408772939. The cubic root of 612911073 is about 849.4395719830.

The spelling of 612911073 in words is "six hundred twelve million, nine hundred eleven thousand, seventy-three".