131477722 has 4 divisors (see below), whose sum is σ = 197216586. Its totient is φ = 65738860.

The previous prime is 131477699. The next prime is 131477741. The reversal of 131477722 is 227774131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 227774131 = 13 ⋅17521087.

It can be written as a sum of positive squares in only one way, i.e., 131354521 + 123201 = 11461^2 + 351^2 .

It is a plaindrome in base 14.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32869429 + ... + 32869432.

Almost surely, 2^131477722 is an apocalyptic number.

131477722 is a deficient number, since it is larger than the sum of its proper divisors (65738864).

131477722 is an equidigital number, since it uses as much as digits as its factorization.

131477722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65738863.

The product of its digits is 16464, while the sum is 34.

The square root of 131477722 is about 11466.3735330749. The cubic root of 131477722 is about 508.4919207306.

The spelling of 131477722 in words is "one hundred thirty-one million, four hundred seventy-seven thousand, seven hundred twenty-two".