31995054 has 128 divisors (see below), whose sum is σ = 92897280. Its totient is φ = 7921152.

The previous prime is 31995017. The next prime is 31995059. The reversal of 31995054 is 45059913.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31995059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 83347 + ... + 83729.

It is an arithmetic number, because the mean of its divisors is an integer number (725760).

Almost surely, 2^31995054 is an apocalyptic number.

31995054 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 31995054, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46448640).

31995054 is an abundant number, since it is smaller than the sum of its proper divisors (60902226).

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

31995054 is a wasteful number, since it uses less digits than its factorization.

31995054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431 (or 425 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 36.

The square root of 31995054 is about 5656.4170638311. The cubic root of 31995054 is about 317.4638527058.

The spelling of 31995054 in words is "thirty-one million, nine hundred ninety-five thousand, fifty-four".