31423601 has 8 divisors (see below), whose sum is σ = 34843008. Its totient is φ = 28098000.

The previous prime is 31423573. The next prime is 31423621. The reversal of 31423601 is 10632413.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31423601 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31423621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22745 + ... + 24086.

It is an arithmetic number, because the mean of its divisors is an integer number (4355376).

Almost surely, 2^31423601 is an apocalyptic number.

It is an amenable number.

31423601 is a deficient number, since it is larger than the sum of its proper divisors (3419407).

31423601 is a wasteful number, since it uses less digits than its factorization.

31423601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46903.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 31423601 is about 5605.6757844171. The cubic root of 31423601 is about 315.5624485525.

The spelling of 31423601 in words is "thirty-one million, four hundred twenty-three thousand, six hundred one".