31403045 has 8 divisors (see below), whose sum is σ = 38322720. Its totient is φ = 24696400.

The previous prime is 31403033. The next prime is 31403059. The reversal of 31403045 is 54030413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31403045 - 2¹⁴ = 31386661 is a prime.

It is a congruent number.

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, 52931 + ... + 53520.

It is an arithmetic number, because the mean of its divisors is an integer number (4790340).

Almost surely, 2^31403045 is an apocalyptic number.

It is an amenable number.

31403045 is a deficient number, since it is larger than the sum of its proper divisors (6919675).

31403045 is a wasteful number, since it uses less digits than its factorization.

31403045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106515.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 31403045 is about 5603.8419856381. The cubic root of 31403045 is about 315.4936243095.

Adding to 31403045 its reverse (54030413), we get a palindrome (85433458).

The spelling of 31403045 in words is "thirty-one million, four hundred three thousand, forty-five".