131621246 has 16 divisors (see below), whose sum is σ = 208078800. Its totient is φ = 62270208.

The previous prime is 131621239. The next prime is 131621261. The reversal of 131621246 is 642126131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39950 + ... + 43118.

It is an arithmetic number, because the mean of its divisors is an integer number (13004925).

Almost surely, 2^131621246 is an apocalyptic number.

131621246 is a deficient number, since it is larger than the sum of its proper divisors (76457554).

131621246 is a wasteful number, since it uses less digits than its factorization.

131621246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4283.

The product of its digits is 1728, while the sum is 26.

The square root of 131621246 is about 11472.6302999792. The cubic root of 131621246 is about 508.6768804678.

Adding to 131621246 its reverse (642126131), we get a palindrome (773747377).

The spelling of 131621246 in words is "one hundred thirty-one million, six hundred twenty-one thousand, two hundred forty-six".