157143699 has 64 divisors (see below), whose sum is σ = 267033600. Its totient is φ = 90699264.

The previous prime is 157143697. The next prime is 157143703. The reversal of 157143699 is 996341751.

It is not a de Polignac number, because 157143699 - 2¹ = 157143697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (157143697) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 322434 + ... + 322920.

It is an arithmetic number, because the mean of its divisors is an integer number (4172400).

Almost surely, 2^157143699 is an apocalyptic number.

157143699 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

157143699 is a deficient number, since it is larger than the sum of its proper divisors (109889901).

157143699 is a wasteful number, since it uses less digits than its factorization.

157143699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569 (or 563 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The square root of 157143699 is about 12535.6969889991. The cubic root of 157143699 is about 539.6336094846.

The spelling of 157143699 in words is "one hundred fifty-seven million, one hundred forty-three thousand, six hundred ninety-nine".