152220257 has 32 divisors (see below), whose sum is σ = 185187072. Its totient is φ = 122425344.

The previous prime is 152220247. The next prime is 152220259. The reversal of 152220257 is 752022251.

It is a cyclic number.

It is not a de Polignac number, because 152220257 - 2⁴ = 152220241 is a prime.

It is a super-2 number, since 2×152220257² = 46342013282292098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (152220259) 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 31 ways as a sum of consecutive naturals, for example, 1569233 + ... + 1569329.

It is an arithmetic number, because the mean of its divisors is an integer number (5787096).

Almost surely, 2^152220257 is an apocalyptic number.

It is an amenable number.

152220257 is a deficient number, since it is larger than the sum of its proper divisors (32966815).

152220257 is an equidigital number, since it uses as much as digits as its factorization.

152220257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297.

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 152220257 is about 12337.7573732020. The cubic root of 152220257 is about 533.9379834650.

The spelling of 152220257 in words is "one hundred fifty-two million, two hundred twenty thousand, two hundred fifty-seven".