157134671 has 4 divisors (see below), whose sum is σ = 161381592. Its totient is φ = 152887752.

The previous prime is 157134661. The next prime is 157134707. The reversal of 157134671 is 176431751.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157134671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157134611) 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, 2123405 + ... + 2123478.

It is an arithmetic number, because the mean of its divisors is an integer number (40345398).

Almost surely, 2^157134671 is an apocalyptic number.

157134671 is a deficient number, since it is larger than the sum of its proper divisors (4246921).

157134671 is an equidigital number, since it uses as much as digits as its factorization.

157134671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4246920.

The product of its digits is 17640, while the sum is 35.

The square root of 157134671 is about 12535.3368921621. The cubic root of 157134671 is about 539.6232751949.

The spelling of 157134671 in words is "one hundred fifty-seven million, one hundred thirty-four thousand, six hundred seventy-one".