612961273 has 4 divisors (see below), whose sum is σ = 614728080. Its totient is φ = 611194468.

The previous prime is 612961241. The next prime is 612961291. The reversal of 612961273 is 372169216.

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 a cyclic number.

It is not a de Polignac number, because 612961273 - 2⁵ = 612961241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (612961073) 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, 882883 + ... + 883576.

It is an arithmetic number, because the mean of its divisors is an integer number (153682020).

Almost surely, 2^612961273 is an apocalyptic number.

It is an amenable number.

612961273 is a deficient number, since it is larger than the sum of its proper divisors (1766807).

612961273 is a wasteful number, since it uses less digits than its factorization.

612961273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1766806.

The product of its digits is 27216, while the sum is 37.

The square root of 612961273 is about 24758.0547095284. The cubic root of 612961273 is about 849.4627622435.

It can be divided in two parts, 61296127 and 3, that multiplied together give a palindrome (183888381).

The spelling of 612961273 in words is "six hundred twelve million, nine hundred sixty-one thousand, two hundred seventy-three".