131463634 has 4 divisors (see below), whose sum is σ = 197195454. Its totient is φ = 65731816.

The previous prime is 131463611. The next prime is 131463637. The reversal of 131463634 is 436364131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 113358609 + 18105025 = 10647^2 + 4255^2 .

It is a junction number, because it is equal to n+sod(n) for n = 131463596 and 131463605.

It is not an unprimeable number, because it can be changed into a prime (131463637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32865907 + ... + 32865910.

Almost surely, 2^131463634 is an apocalyptic number.

131463634 is a deficient number, since it is larger than the sum of its proper divisors (65731820).

131463634 is an equidigital number, since it uses as much as digits as its factorization.

131463634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65731819.

The product of its digits is 15552, while the sum is 31.

The square root of 131463634 is about 11465.7591985878. The cubic root of 131463634 is about 508.4737582365.

The spelling of 131463634 in words is "one hundred thirty-one million, four hundred sixty-three thousand, six hundred thirty-four".