131603738 has 16 divisors (see below), whose sum is σ = 225924864. Its totient is φ = 56322000.

The previous prime is 131603737. The next prime is 131603753. The reversal of 131603738 is 837306131.

It is not an unprimeable number, because it can be changed into a prime (131603737) 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, 4256 + ... + 16772.

It is an arithmetic number, because the mean of its divisors is an integer number (14120304).

Almost surely, 2^131603738 is an apocalyptic number.

131603738 is a deficient number, since it is larger than the sum of its proper divisors (94321126).

131603738 is a wasteful number, since it uses less digits than its factorization.

131603738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13277.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 131603738 is about 11471.8672412123. The cubic root of 131603738 is about 508.6543250673.

Adding to 131603738 its reverse (837306131), we get a palindrome (968909869).

The spelling of 131603738 in words is "one hundred thirty-one million, six hundred three thousand, seven hundred thirty-eight".