157200023 has 4 divisors (see below), whose sum is σ = 159546360. Its totient is φ = 154853688.

The previous prime is 157199953. The next prime is 157200031. The reversal of 157200023 is 320002751.

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

It is a cyclic number.

It is not a de Polignac number, because 157200023 - 2¹⁰ = 157198999 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 157199968 and 157200004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157200073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1173068 + ... + 1173201.

It is an arithmetic number, because the mean of its divisors is an integer number (39886590).

Almost surely, 2^157200023 is an apocalyptic number.

157200023 is a deficient number, since it is larger than the sum of its proper divisors (2346337).

157200023 is an equidigital number, since it uses as much as digits as its factorization.

157200023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2346336.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 157200023 is about 12537.9433321418. The cubic root of 157200023 is about 539.6980742452.

Adding to 157200023 its reverse (320002751), we get a palindrome (477202774).

The spelling of 157200023 in words is "one hundred fifty-seven million, two hundred thousand, twenty-three".