157143686 has 48 divisors (see below), whose sum is σ = 282606912. Its totient is φ = 65318400.

The previous prime is 157143683. The next prime is 157143689. The reversal of 157143686 is 686341751.

157143686 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (157143683) and next prime (157143689).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157143683) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 579731 + ... + 580001.

It is an arithmetic number, because the mean of its divisors is an integer number (5887644).

Almost surely, 2^157143686 is an apocalyptic number.

157143686 is a deficient number, since it is larger than the sum of its proper divisors (125463226).

157143686 is a wasteful number, since it uses less digits than its factorization.

157143686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445 (or 438 counting only the distinct ones).

The product of its digits is 120960, while the sum is 41.

The square root of 157143686 is about 12535.6964704798. The cubic root of 157143686 is about 539.6335946039.

The spelling of 157143686 in words is "one hundred fifty-seven million, one hundred forty-three thousand, six hundred eighty-six".