162101906 has 8 divisors (see below), whose sum is σ = 243269004. Its totient is φ = 81012240.

The previous prime is 162101903. The next prime is 162101941. The reversal of 162101906 is 609101261.

162101906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 155127025 + 6974881 = 12455^2 + 2641^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (162101903) 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, 13805 + ... + 22688.

Almost surely, 2^162101906 is an apocalyptic number.

162101906 is the 6806-th centered heptagonal number.

162101906 is a deficient number, since it is larger than the sum of its proper divisors (81167098).

162101906 is a wasteful number, since it uses less digits than its factorization.

162101906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38716.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 162101906 is about 12731.9246777539. The cubic root of 162101906 is about 545.2504597487.

The spelling of 162101906 in words is "one hundred sixty-two million, one hundred one thousand, nine hundred six".