61140365 has 32 divisors (see below), whose sum is σ = 86800896. Its totient is φ = 40757760.

The previous prime is 61140349. The next prime is 61140377. The reversal of 61140365 is 56304116.

It is not a de Polignac number, because 61140365 - 2⁴ = 61140349 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 166412 + ... + 166778.

It is an arithmetic number, because the mean of its divisors is an integer number (2712528).

Almost surely, 2^61140365 is an apocalyptic number.

61140365 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

61140365 is a deficient number, since it is larger than the sum of its proper divisors (25660531).

61140365 is a wasteful number, since it uses less digits than its factorization.

61140365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 61140365 is about 7819.2304608574. The cubic root of 61140365 is about 393.9514249511.

The spelling of 61140365 in words is "sixty-one million, one hundred forty thousand, three hundred sixty-five".