157455571 has 12 divisors (see below), whose sum is σ = 197252832. Its totient is φ = 124579728.

The previous prime is 157455553. The next prime is 157455619. The reversal of 157455571 is 175554751.

It is not a de Polignac number, because 157455571 - 2¹³ = 157447379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (157455511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 122955 + ... + 124228.

It is an arithmetic number, because the mean of its divisors is an integer number (16437736).

Almost surely, 2^157455571 is an apocalyptic number.

157455571 is a deficient number, since it is larger than the sum of its proper divisors (39797261).

157455571 is a wasteful number, since it uses less digits than its factorization.

157455571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247210 (or 247203 counting only the distinct ones).

The product of its digits is 122500, while the sum is 40.

The square root of 157455571 is about 12548.1301794331. The cubic root of 157455571 is about 539.9903644828.

It can be divided in two parts, 15745 and 5571, that added together give a square (21316 = 146²).

The spelling of 157455571 in words is "one hundred fifty-seven million, four hundred fifty-five thousand, five hundred seventy-one".