31461023 has 8 divisors (see below), whose sum is σ = 34805376. Its totient is φ = 28197400.

The previous prime is 31461013. The next prime is 31461037. The reversal of 31461023 is 32016413.

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

It is not a de Polignac number, because 31461023 - 2⁴ = 31461007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31460986 and 31461004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31461013) 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, 19361 + ... + 20922.

It is an arithmetic number, because the mean of its divisors is an integer number (4350672).

Almost surely, 2^31461023 is an apocalyptic number.

31461023 is a deficient number, since it is larger than the sum of its proper divisors (3344353).

31461023 is a wasteful number, since it uses less digits than its factorization.

31461023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40365.

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

The square root of 31461023 is about 5609.0126582136. The cubic root of 31461023 is about 315.6876654059.

Adding to 31461023 its reverse (32016413), we get a palindrome (63477436).

The spelling of 31461023 in words is "thirty-one million, four hundred sixty-one thousand, twenty-three".