162490121 has 4 divisors (see below), whose sum is σ = 163137744. Its totient is φ = 161842500.

The previous prime is 162490099. The next prime is 162490129. The reversal of 162490121 is 121094261.

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 162490121 - 2¹⁸ = 162227977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (162490129) 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, 323435 + ... + 323936.

It is an arithmetic number, because the mean of its divisors is an integer number (40784436).

Almost surely, 2^162490121 is an apocalyptic number.

It is an amenable number.

162490121 is a deficient number, since it is larger than the sum of its proper divisors (647623).

162490121 is an equidigital number, since it uses as much as digits as its factorization.

162490121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647622.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 162490121 is about 12747.1612918328. The cubic root of 162490121 is about 545.6853829779.

The spelling of 162490121 in words is "one hundred sixty-two million, four hundred ninety thousand, one hundred twenty-one".