61102657 has 12 divisors (see below), whose sum is σ = 77540976. Its totient is φ = 47612040.

The previous prime is 61102649. The next prime is 61102703. The reversal of 61102657 is 75620116.

It is not a de Polignac number, because 61102657 - 2³ = 61102649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61102627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56143 + ... + 57220.

It is an arithmetic number, because the mean of its divisors is an integer number (6461748).

Almost surely, 2^61102657 is an apocalyptic number.

It is an amenable number.

61102657 is a deficient number, since it is larger than the sum of its proper divisors (16438319).

61102657 is a wasteful number, since it uses less digits than its factorization.

61102657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113388 (or 113381 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 61102657 is about 7816.8188542399. The cubic root of 61102657 is about 393.8704191360.

The spelling of 61102657 in words is "sixty-one million, one hundred two thousand, six hundred fifty-seven".