61031088 has 120 divisors (see below), whose sum is σ = 183323088. Its totient is φ = 18886656.

The previous prime is 61031053. The next prime is 61031101. The reversal of 61031088 is 88013016.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 261820 + ... + 262052.

Almost surely, 2^61031088 is an apocalyptic number.

61031088 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61031088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91661544).

61031088 is an abundant number, since it is smaller than the sum of its proper divisors (122292000).

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

61031088 is a wasteful number, since it uses less digits than its factorization.

61031088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371 (or 362 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 61031088 is about 7812.2396276612. The cubic root of 61031088 is about 393.7165800811.

The spelling of 61031088 in words is "sixty-one million, thirty-one thousand, eighty-eight".