61162690 has 16 divisors (see below), whose sum is σ = 113644800. Its totient is φ = 23675760.

The previous prime is 61162679. The next prime is 61162697. The reversal of 61162690 is 9626116.

It is a super-2 number, since 2×61162690² = 7481749296072200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (61162697) 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 7 ways as a sum of consecutive naturals, for example, 98340 + ... + 98959.

It is an arithmetic number, because the mean of its divisors is an integer number (7102800).

Almost surely, 2^61162690 is an apocalyptic number.

61162690 is a deficient number, since it is larger than the sum of its proper divisors (52482110).

61162690 is a wasteful number, since it uses less digits than its factorization.

61162690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197337.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 61162690 is about 7820.6579007140. The cubic root of 61162690 is about 393.9993687021. Note that the first 3 decimals are identical.

The spelling of 61162690 in words is "sixty-one million, one hundred sixty-two thousand, six hundred ninety".