162240857 has 4 divisors (see below), whose sum is σ = 162307200. Its totient is φ = 162174516.

The previous prime is 162240811. The next prime is 162240863. The reversal of 162240857 is 758042261.

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 162240857 - 2¹⁴ = 162224473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (162240457) 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, 29357 + ... + 34442.

It is an arithmetic number, because the mean of its divisors is an integer number (40576800).

Almost surely, 2^162240857 is an apocalyptic number.

It is an amenable number.

162240857 is a deficient number, since it is larger than the sum of its proper divisors (66343).

162240857 is an equidigital number, since it uses as much as digits as its factorization.

162240857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66342.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 162240857 is about 12737.3803036574. The cubic root of 162240857 is about 545.4062083993.

The spelling of 162240857 in words is "one hundred sixty-two million, two hundred forty thousand, eight hundred fifty-seven".