131601742 has 8 divisors (see below), whose sum is σ = 200748600. Its totient is φ = 64685544.

The previous prime is 131601737. The next prime is 131601763. The reversal of 131601742 is 247106131.

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, 557517 + ... + 557752.

It is an arithmetic number, because the mean of its divisors is an integer number (25093575).

Almost surely, 2^131601742 is an apocalyptic number.

131601742 is a deficient number, since it is larger than the sum of its proper divisors (69146858).

131601742 is a wasteful number, since it uses less digits than its factorization.

131601742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115330.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 131601742 is about 11471.7802454545. The cubic root of 131601742 is about 508.6517535113.

Adding to 131601742 its reverse (247106131), we get a palindrome (378707873).

The spelling of 131601742 in words is "one hundred thirty-one million, six hundred one thousand, seven hundred forty-two".