131415163450 has 48 divisors (see below), whose sum is σ = 261137437920. Its totient is φ = 49056131520.

The previous prime is 131415163423. The next prime is 131415163471. The reversal of 131415163450 is 54361514131.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 968677 + ... + 1095976.

It is an arithmetic number, because the mean of its divisors is an integer number (5440363290).

Almost surely, 2^131415163450 is an apocalyptic number.

131415163450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131415163450 is a deficient number, since it is larger than the sum of its proper divisors (129722274470).

131415163450 is a wasteful number, since it uses less digits than its factorization.

131415163450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2064751 (or 2064746 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

Adding to 131415163450 its reverse (54361514131), we get a palindrome (185776677581).

The spelling of 131415163450 in words is "one hundred thirty-one billion, four hundred fifteen million, one hundred sixty-three thousand, four hundred fifty".