31494023 has 8 divisors (see below), whose sum is σ = 34940160. Its totient is φ = 28145080.

The previous prime is 31493999. The next prime is 31494041. The reversal of 31494023 is 32049413.

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

It is a cyclic number.

It is not a de Polignac number, because 31494023 - 2²² = 27299719 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31493983 and 31494001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31494053) 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 7 ways as a sum of consecutive naturals, for example, 23615 + ... + 24912.

It is an arithmetic number, because the mean of its divisors is an integer number (4367520).

Almost surely, 2^31494023 is an apocalyptic number.

31494023 is a deficient number, since it is larger than the sum of its proper divisors (3446137).

31494023 is a wasteful number, since it uses less digits than its factorization.

31494023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48597.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 31494023 is about 5611.9535814189. The cubic root of 31494023 is about 315.7980035498.

The spelling of 31494023 in words is "thirty-one million, four hundred ninety-four thousand, twenty-three".