162123815 has 16 divisors (see below), whose sum is σ = 235420992. Its totient is φ = 104630784.

The previous prime is 162123811. The next prime is 162123847. The reversal of 162123815 is 518321261.

It is not a de Polignac number, because 162123815 - 2² = 162123811 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162123811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135644 + ... + 136833.

It is an arithmetic number, because the mean of its divisors is an integer number (14713812).

Almost surely, 2^162123815 is an apocalyptic number.

162123815 is a deficient number, since it is larger than the sum of its proper divisors (73297177).

162123815 is a wasteful number, since it uses less digits than its factorization.

162123815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272506.

The product of its digits is 2880, while the sum is 29.

The square root of 162123815 is about 12732.7850449146. The cubic root of 162123815 is about 545.2750232152.

The spelling of 162123815 in words is "one hundred sixty-two million, one hundred twenty-three thousand, eight hundred fifteen".