167124491 has 4 divisors (see below), whose sum is σ = 167267184. Its totient is φ = 166981800.

The previous prime is 167124481. The next prime is 167124499. The reversal of 167124491 is 194421761.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 194421761 = 491 ⋅395971.

It is a cyclic number.

It is not a de Polignac number, because 167124491 - 2¹⁴ = 167108107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (167124499) 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, 69575 + ... + 71936.

It is an arithmetic number, because the mean of its divisors is an integer number (41816796).

Almost surely, 2^167124491 is an apocalyptic number.

167124491 is a deficient number, since it is larger than the sum of its proper divisors (142693).

167124491 is a wasteful number, since it uses less digits than its factorization.

167124491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142692.

The product of its digits is 12096, while the sum is 35.

The square root of 167124491 is about 12927.6637873979. The cubic root of 167124491 is about 550.8246483363.

It can be divided in two parts, 1671 and 24491, that added together give a palindrome (26162).

The spelling of 167124491 in words is "one hundred sixty-seven million, one hundred twenty-four thousand, four hundred ninety-one".