162513641 has 4 divisors (see below), whose sum is σ = 166293072. Its totient is φ = 158734212.

The previous prime is 162513629. The next prime is 162513643. The reversal of 162513641 is 146315261.

It is a happy number.

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 162513641 - 2¹⁰ = 162512617 is a prime.

It is a super-2 number, since 2×162513641² = 52821367022153762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (162513643) 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, 1889651 + ... + 1889736.

It is an arithmetic number, because the mean of its divisors is an integer number (41573268).

Almost surely, 2^162513641 is an apocalyptic number.

It is an amenable number.

162513641 is a deficient number, since it is larger than the sum of its proper divisors (3779431).

162513641 is an equidigital number, since it uses as much as digits as its factorization.

162513641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3779430.

The product of its digits is 4320, while the sum is 29.

The square root of 162513641 is about 12748.0838167938. The cubic root of 162513641 is about 545.7117105293.

The spelling of 162513641 in words is "one hundred sixty-two million, five hundred thirteen thousand, six hundred forty-one".