162021137 has 8 divisors (see below), whose sum is σ = 163948512. Its totient is φ = 160099200.

The previous prime is 162021133. The next prime is 162021143. The reversal of 162021137 is 731120261.

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

It is a cyclic number.

It is not a de Polignac number, because 162021137 - 2² = 162021133 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (162021133) 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 7 ways as a sum of consecutive naturals, for example, 105062 + ... + 106592.

It is an arithmetic number, because the mean of its divisors is an integer number (20493564).

Almost surely, 2^162021137 is an apocalyptic number.

It is an amenable number.

162021137 is a deficient number, since it is larger than the sum of its proper divisors (1927375).

162021137 is a wasteful number, since it uses less digits than its factorization.

162021137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2719.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 162021137 is about 12728.7523740546. The cubic root of 162021137 is about 545.1598857556.

Adding to 162021137 its reverse (731120261), we get a palindrome (893141398).

The spelling of 162021137 in words is "one hundred sixty-two million, twenty-one thousand, one hundred thirty-seven".