61163090 has 16 divisors (see below), whose sum is σ = 115888320. Its totient is φ = 23177520.

The previous prime is 61163083. The next prime is 61163111. The reversal of 61163090 is 9036116.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160766 + ... + 161145.

It is an arithmetic number, because the mean of its divisors is an integer number (7243020).

Almost surely, 2^61163090 is an apocalyptic number.

61163090 is a deficient number, since it is larger than the sum of its proper divisors (54725230).

61163090 is a wasteful number, since it uses less digits than its factorization.

61163090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321937.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 61163090 is about 7820.6834739682. The cubic root of 61163090 is about 394.0002276103. Note that the first 3 decimals are identical.

The spelling of 61163090 in words is "sixty-one million, one hundred sixty-three thousand, ninety".