61191634 has 16 divisors (see below), whose sum is σ = 106379136. Its totient is φ = 25855200.

The previous prime is 61191631. The next prime is 61191643. The reversal of 61191634 is 43619116.

It is a junction number, because it is equal to n+sod(n) for n = 61191596 and 61191605.

It is not an unprimeable number, because it can be changed into a prime (61191631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29787 + ... + 31774.

It is an arithmetic number, because the mean of its divisors is an integer number (6648696).

Almost surely, 2^61191634 is an apocalyptic number.

61191634 is a deficient number, since it is larger than the sum of its proper divisors (45187502).

61191634 is a wasteful number, since it uses less digits than its factorization.

61191634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61641.

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

The square root of 61191634 is about 7822.5081655438. The cubic root of 61191634 is about 394.0615096321.

The spelling of 61191634 in words is "sixty-one million, one hundred ninety-one thousand, six hundred thirty-four".