157623369 has 4 divisors (see below), whose sum is σ = 210164496. Its totient is φ = 105082244.

The previous prime is 157623331. The next prime is 157623377. The reversal of 157623369 is 963326751.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 157623369 - 2¹⁶ = 157557833 is a prime.

It is a super-2 number, since 2×157623369² = 49690252909820322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 157623369.

It is not an unprimeable number, because it can be changed into a prime (157622369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26270559 + ... + 26270564.

It is an arithmetic number, because the mean of its divisors is an integer number (52541124).

Almost surely, 2^157623369 is an apocalyptic number.

It is an amenable number.

157623369 is a deficient number, since it is larger than the sum of its proper divisors (52541127).

157623369 is an equidigital number, since it uses as much as digits as its factorization.

157623369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52541126.

The product of its digits is 204120, while the sum is 42.

The square root of 157623369 is about 12554.8145744969. The cubic root of 157623369 is about 540.1821162146.

The spelling of 157623369 in words is "one hundred fifty-seven million, six hundred twenty-three thousand, three hundred sixty-nine".