131031742 has 8 divisors (see below), whose sum is σ = 198095616. Its totient is φ = 64999872.

The previous prime is 131031737. The next prime is 131031751. The reversal of 131031742 is 247130131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 257683 + ... + 258190.

It is an arithmetic number, because the mean of its divisors is an integer number (24761952).

Almost surely, 2^131031742 is an apocalyptic number.

131031742 is a deficient number, since it is larger than the sum of its proper divisors (67063874).

131031742 is a wasteful number, since it uses less digits than its factorization.

131031742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516002.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 131031742 is about 11446.9097139796. The cubic root of 131031742 is about 507.9163248009.

Adding to 131031742 its reverse (247130131), we get a palindrome (378161873).

The spelling of 131031742 in words is "one hundred thirty-one million, thirty-one thousand, seven hundred forty-two".