61365311 has 16 divisors (see below), whose sum is σ = 73419264. Its totient is φ = 50148384.

The previous prime is 61365301. The next prime is 61365313. The reversal of 61365311 is 11356316.

It is a cyclic number.

It is not a de Polignac number, because 61365311 - 2¹⁸ = 61103167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61365313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90305 + ... + 90981.

It is an arithmetic number, because the mean of its divisors is an integer number (4588704).

Almost surely, 2^61365311 is an apocalyptic number.

61365311 is a deficient number, since it is larger than the sum of its proper divisors (12053953).

61365311 is a wasteful number, since it uses less digits than its factorization.

61365311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1270.

The product of its digits is 1620, while the sum is 26.

The square root of 61365311 is about 7833.6014067605. The cubic root of 61365311 is about 394.4339721672.

The spelling of 61365311 in words is "sixty-one million, three hundred sixty-five thousand, three hundred eleven".