162120537 has 12 divisors (see below), whose sum is σ = 244355904. Its totient is φ = 103381080.

The previous prime is 162120529. The next prime is 162120557. The reversal of 162120537 is 735021261.

It is a happy number.

162120537 is a `hidden beast` number, since 1 + 6 + 2 + 120 + 537 = 666.

162120537 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 162120537 - 2³ = 162120529 is a prime.

It is a super-3 number, since 3×162120537³ (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 162120537.

It is not an unprimeable number, because it can be changed into a prime (162120557) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 391389 + ... + 391802.

It is an arithmetic number, because the mean of its divisors is an integer number (20362992).

Almost surely, 2^162120537 is an apocalyptic number.

It is an amenable number.

162120537 is a deficient number, since it is larger than the sum of its proper divisors (82235367).

162120537 is a wasteful number, since it uses less digits than its factorization.

162120537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783220 (or 783217 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 162120537 is about 12732.6563214437. The cubic root of 162120537 is about 545.2713481977.

Adding to 162120537 its reverse (735021261), we get a palindrome (897141798).

The spelling of 162120537 in words is "one hundred sixty-two million, one hundred twenty thousand, five hundred thirty-seven".