134901631 has 4 divisors (see below), whose sum is σ = 134937000. Its totient is φ = 134866264.

The previous prime is 134901629. The next prime is 134901673. The reversal of 134901631 is 136109431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 136109431 = 607 ⋅224233.

It is a cyclic number.

It is not a de Polignac number, because 134901631 - 2¹ = 134901629 is a prime.

It is a super-2 number, since 2×134901631² = 36396900092920322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 134901631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134901731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11161 + ... + 19858.

It is an arithmetic number, because the mean of its divisors is an integer number (33734250).

Almost surely, 2^134901631 is an apocalyptic number.

134901631 is a deficient number, since it is larger than the sum of its proper divisors (35369).

134901631 is an equidigital number, since it uses as much as digits as its factorization.

134901631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35368.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 134901631 is about 11614.7161394500. The cubic root of 134901631 is about 512.8681547467.

The spelling of 134901631 in words is "one hundred thirty-four million, nine hundred one thousand, six hundred thirty-one".