162942521 has 8 divisors (see below), whose sum is σ = 186336384. Its totient is φ = 139577760.

The previous prime is 162942517. The next prime is 162942547. The reversal of 162942521 is 125249261.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 162942521 - 2² = 162942517 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (162942551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6461 + ... + 19173.

It is an arithmetic number, because the mean of its divisors is an integer number (23292048).

Almost surely, 2^162942521 is an apocalyptic number.

It is an amenable number.

162942521 is a deficient number, since it is larger than the sum of its proper divisors (23393863).

162942521 is a wasteful number, since it uses less digits than its factorization.

162942521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14551.

The product of its digits is 8640, while the sum is 32.

The square root of 162942521 is about 12764.8940849503. The cubic root of 162942521 is about 546.1913405339.

The spelling of 162942521 in words is "one hundred sixty-two million, nine hundred forty-two thousand, five hundred twenty-one".