157381223 has 8 divisors (see below), whose sum is σ = 166797792. Its totient is φ = 147982336.

The previous prime is 157381207. The next prime is 157381253. The reversal of 157381223 is 322183751.

157381223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 157381223 - 2⁴ = 157381207 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 157381223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157381253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16886 + ... + 24492.

It is an arithmetic number, because the mean of its divisors is an integer number (20849724).

Almost surely, 2^157381223 is an apocalyptic number.

157381223 is a deficient number, since it is larger than the sum of its proper divisors (9416569).

157381223 is a wasteful number, since it uses less digits than its factorization.

157381223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8841.

The product of its digits is 10080, while the sum is 32.

The square root of 157381223 is about 12545.1673165407. The cubic root of 157381223 is about 539.9053595002.

It can be divided in two parts, 15738 and 1223, that added together give a palindrome (16961).

The spelling of 157381223 in words is "one hundred fifty-seven million, three hundred eighty-one thousand, two hundred twenty-three".