31554093 has 4 divisors (see below), whose sum is σ = 42072128. Its totient is φ = 21036060.

The previous prime is 31554077. The next prime is 31554121. The reversal of 31554093 is 39045513.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 31554093 - 2⁴ = 31554077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 31554093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31554013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5259013 + ... + 5259018.

It is an arithmetic number, because the mean of its divisors is an integer number (10518032).

Almost surely, 2^31554093 is an apocalyptic number.

It is an amenable number.

31554093 is a deficient number, since it is larger than the sum of its proper divisors (10518035).

31554093 is a wasteful number, since it uses less digits than its factorization.

31554093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10518034.

The product of its (nonzero) digits is 8100, while the sum is 30.

The square root of 31554093 is about 5617.3030005511. The cubic root of 31554093 is about 315.9986547238.

The spelling of 31554093 in words is "thirty-one million, five hundred fifty-four thousand, ninety-three".