61031532 has 24 divisors (see below), whose sum is σ = 143051776. Its totient is φ = 20251728.

The previous prime is 61031519. The next prime is 61031549. The reversal of 61031532 is 23513016.

It is a junction number, because it is equal to n+sod(n) for n = 61031499 and 61031508.

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, 8728 + ... + 14079.

Almost surely, 2^61031532 is an apocalyptic number.

It is an amenable number.

61031532 is an abundant number, since it is smaller than the sum of its proper divisors (82020244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61031532 is a wasteful number, since it uses less digits than its factorization.

61031532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23037 (or 23035 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 61031532 is about 7812.2680445566. The cubic root of 61031532 is about 393.7175348390.

Adding to 61031532 its reverse (23513016), we get a palindrome (84544548).

The spelling of 61031532 in words is "sixty-one million, thirty-one thousand, five hundred thirty-two".