162121542 has 64 divisors (see below), whose sum is σ = 371381760. Its totient is φ = 46726400.

The previous prime is 162121529. The next prime is 162121559. The reversal of 162121542 is 245121261.

162121542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 135298 + ... + 136490.

It is an arithmetic number, because the mean of its divisors is an integer number (5802840).

Almost surely, 2^162121542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 162121542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185690880).

162121542 is an abundant number, since it is smaller than the sum of its proper divisors (209260218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

162121542 is a wasteful number, since it uses less digits than its factorization.

162121542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309.

The product of its digits is 960, while the sum is 24.

The square root of 162121542 is about 12732.6957868316. The cubic root of 162121542 is about 545.2724749243.

The spelling of 162121542 in words is "one hundred sixty-two million, one hundred twenty-one thousand, five hundred forty-two".