134402157 has 12 divisors (see below), whose sum is σ = 194532000. Its totient is φ = 89418888.

The previous prime is 134402113. The next prime is 134402159. The reversal of 134402157 is 751204431.

134402157 is a `hidden beast` number, since 1 + 3 + 440 + 215 + 7 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-134402157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 134402157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134402159) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10473 + ... + 19454.

It is an arithmetic number, because the mean of its divisors is an integer number (16211000).

Almost surely, 2^134402157 is an apocalyptic number.

It is an amenable number.

134402157 is a deficient number, since it is larger than the sum of its proper divisors (60129843).

134402157 is a wasteful number, since it uses less digits than its factorization.

134402157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30432 (or 30429 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 134402157 is about 11593.1944260415. The cubic root of 134402157 is about 512.2344062673.

Adding to 134402157 its reverse (751204431), we get a palindrome (885606588).

The spelling of 134402157 in words is "one hundred thirty-four million, four hundred two thousand, one hundred fifty-seven".