61415290 has 32 divisors (see below), whose sum is σ = 115914240. Its totient is φ = 23384064.

The previous prime is 61415273. The next prime is 61415327. The reversal of 61415290 is 9251416.

It is a nialpdrome in base 13.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58591 + ... + 59629.

It is an arithmetic number, because the mean of its divisors is an integer number (3622320).

Almost surely, 2^61415290 is an apocalyptic number.

61415290 is a deficient number, since it is larger than the sum of its proper divisors (54498950).

61415290 is a wasteful number, since it uses less digits than its factorization.

61415290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 61415290 is about 7836.7907972588. The cubic root of 61415290 is about 394.5410254069.

The spelling of 61415290 in words is "sixty-one million, four hundred fifteen thousand, two hundred ninety".