162172127 has 4 divisors (see below), whose sum is σ = 174646920. Its totient is φ = 149697336.

The previous prime is 162172121. The next prime is 162172133. The reversal of 162172127 is 721271261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 721271261 = 1907 ⋅378223.

It is an interprime number because it is at equal distance from previous prime (162172121) and next prime (162172133).

It is a cyclic number.

It is not a de Polignac number, because 162172127 - 2¹² = 162168031 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 162172127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162172121) 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, 6237377 + ... + 6237402.

It is an arithmetic number, because the mean of its divisors is an integer number (43661730).

Almost surely, 2^162172127 is an apocalyptic number.

162172127 is a deficient number, since it is larger than the sum of its proper divisors (12474793).

162172127 is a wasteful number, since it uses less digits than its factorization.

162172127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12474792.

The product of its digits is 2352, while the sum is 29.

The square root of 162172127 is about 12734.6820533534. The cubic root of 162172127 is about 545.3291808161.

The spelling of 162172127 in words is "one hundred sixty-two million, one hundred seventy-two thousand, one hundred twenty-seven".