135631347942 has 16 divisors (see below), whose sum is σ = 277571131200. Its totient is φ = 44159043432.

The previous prime is 135631347941. The next prime is 135631348001. The reversal of 135631347942 is 249743136531.

It is a junction number, because it is equal to n+sod(n) for n = 135631347891 and 135631347900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135631347941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262851192 + ... + 262851707.

It is an arithmetic number, because the mean of its divisors is an integer number (17348195700).

Almost surely, 2^135631347942 is an apocalyptic number.

135631347942 is an abundant number, since it is smaller than the sum of its proper divisors (141939783258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135631347942 is a wasteful number, since it uses less digits than its factorization.

135631347942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525702947.

The product of its digits is 1632960, while the sum is 48.

The spelling of 135631347942 in words is "one hundred thirty-five billion, six hundred thirty-one million, three hundred forty-seven thousand, nine hundred forty-two".