61834531 has 16 divisors (see below), whose sum is σ = 71424000. Its totient is φ = 52941600.

The previous prime is 61834499. The next prime is 61834543. The reversal of 61834531 is 13543816.

It is not a de Polignac number, because 61834531 - 2⁵ = 61834499 is a prime.

It is a super-2 number, since 2×61834531² = 7647018447979922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61834493 and 61834502.

It is not an unprimeable number, because it can be changed into a prime (61834561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39145 + ... + 40693.

It is an arithmetic number, because the mean of its divisors is an integer number (4464000).

Almost surely, 2^61834531 is an apocalyptic number.

61834531 is a deficient number, since it is larger than the sum of its proper divisors (9589469).

61834531 is a wasteful number, since it uses less digits than its factorization.

61834531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1770.

The product of its digits is 8640, while the sum is 31.

The square root of 61834531 is about 7863.4935620245. The cubic root of 61834531 is about 395.4367459946.

The spelling of 61834531 in words is "sixty-one million, eight hundred thirty-four thousand, five hundred thirty-one".