31415152505 has 16 divisors (see below), whose sum is σ = 41156377344. Its totient is φ = 22830113280.

The previous prime is 31415152493. The next prime is 31415152507. The reversal of 31415152505 is 50525151413.

It is not a de Polignac number, because 31415152505 - 2⁶ = 31415152441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31415152507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142232 + ... + 288201.

It is an arithmetic number, because the mean of its divisors is an integer number (2572273584).

Almost surely, 2^31415152505 is an apocalyptic number.

It is an amenable number.

31415152505 is a deficient number, since it is larger than the sum of its proper divisors (9741224839).

31415152505 is a wasteful number, since it uses less digits than its factorization.

31415152505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431776.

The product of its (nonzero) digits is 15000, while the sum is 32.

The spelling of 31415152505 in words is "thirty-one billion, four hundred fifteen million, one hundred fifty-two thousand, five hundred five".