61164311 has 6 divisors (see below), whose sum is σ = 66231360. Its totient is φ = 56459208.

The previous prime is 61164307. The next prime is 61164319. The reversal of 61164311 is 11346116.

It is not a de Polignac number, because 61164311 - 2² = 61164307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61164319) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 180791 + ... + 181128.

It is an arithmetic number, because the mean of its divisors is an integer number (11038560).

Almost surely, 2^61164311 is an apocalyptic number.

61164311 is a deficient number, since it is larger than the sum of its proper divisors (5067049).

61164311 is a wasteful number, since it uses less digits than its factorization.

61164311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361945 (or 361932 counting only the distinct ones).

The product of its digits is 432, while the sum is 23.

The square root of 61164311 is about 7820.7615358097. The cubic root of 61164311 is about 394.0028494044.

The spelling of 61164311 in words is "sixty-one million, one hundred sixty-four thousand, three hundred eleven".