167272491 has 16 divisors (see below), whose sum is σ = 233049600. Its totient is φ = 106518720.

The previous prime is 167272487. The next prime is 167272499. The reversal of 167272491 is 194272761.

It is not a de Polignac number, because 167272491 - 2² = 167272487 is a prime.

It is not an unprimeable number, because it can be changed into a prime (167272499) 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 15 ways as a sum of consecutive naturals, for example, 71226 + ... + 73536.

It is an arithmetic number, because the mean of its divisors is an integer number (14565600).

Almost surely, 2^167272491 is an apocalyptic number.

167272491 is a deficient number, since it is larger than the sum of its proper divisors (65777109).

167272491 is a wasteful number, since it uses less digits than its factorization.

167272491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3386.

The product of its digits is 42336, while the sum is 39.

The square root of 167272491 is about 12933.3866794432. The cubic root of 167272491 is about 550.9871978124.

The spelling of 167272491 in words is "one hundred sixty-seven million, two hundred seventy-two thousand, four hundred ninety-one".