162988137 has 48 divisors (see below), whose sum is σ = 269156160. Its totient is φ = 94214016.

The previous prime is 162988121. The next prime is 162988141. The reversal of 162988137 is 731889261.

162988137 is a `hidden beast` number, since 1 + 629 + 8 + 8 + 13 + 7 = 666.

It is not a de Polignac number, because 162988137 - 2⁴ = 162988121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 162988092 and 162988101.

It is not an unprimeable number, because it can be changed into a prime (162988187) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 348778 + ... + 349244.

It is an arithmetic number, because the mean of its divisors is an integer number (5607420).

Almost surely, 2^162988137 is an apocalyptic number.

It is an amenable number.

162988137 is a deficient number, since it is larger than the sum of its proper divisors (106168023).

162988137 is a wasteful number, since it uses less digits than its factorization.

162988137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662 (or 659 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 162988137 is about 12766.6807354144. The cubic root of 162988137 is about 546.2423048032.

The spelling of 162988137 in words is "one hundred sixty-two million, nine hundred eighty-eight thousand, one hundred thirty-seven".