31415489 has 8 divisors (see below), whose sum is σ = 36092928. Its totient is φ = 26785440.

The previous prime is 31415467. The next prime is 31415537. The reversal of 31415489 is 98451413.

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 31415489 - 2⁸ = 31415233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31417489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10412 + ... + 13085.

It is an arithmetic number, because the mean of its divisors is an integer number (4511616).

Almost surely, 2^31415489 is an apocalyptic number.

It is an amenable number.

31415489 is a deficient number, since it is larger than the sum of its proper divisors (4677439).

31415489 is a wasteful number, since it uses less digits than its factorization.

31415489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23695.

The product of its digits is 17280, while the sum is 35.

The square root of 31415489 is about 5604.9521853447. The cubic root of 31415489 is about 315.5352920755.

The spelling of 31415489 in words is "thirty-one million, four hundred fifteen thousand, four hundred eighty-nine".