157326261 has 4 divisors (see below), whose sum is σ = 209768352. Its totient is φ = 104884172.

The previous prime is 157326241. The next prime is 157326283. The reversal of 157326261 is 162623751.

157326261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 157326261 - 2¹⁰ = 157325237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157326241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26221041 + ... + 26221046.

It is an arithmetic number, because the mean of its divisors is an integer number (52442088).

Almost surely, 2^157326261 is an apocalyptic number.

It is an amenable number.

157326261 is a deficient number, since it is larger than the sum of its proper divisors (52442091).

157326261 is an equidigital number, since it uses as much as digits as its factorization.

157326261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52442090.

The product of its digits is 15120, while the sum is 33.

The square root of 157326261 is about 12542.9765606095. The cubic root of 157326261 is about 539.8425020792.

The spelling of 157326261 in words is "one hundred fifty-seven million, three hundred twenty-six thousand, two hundred sixty-one".