169142451 has 16 divisors (see below), whose sum is σ = 230791680. Its totient is φ = 110146400.

The previous prime is 169142431. The next prime is 169142459. The reversal of 169142451 is 154241961.

It is a cyclic number.

It is not a de Polignac number, because 169142451 - 2⁵ = 169142419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (169142459) 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, 35776 + ... + 40226.

It is an arithmetic number, because the mean of its divisors is an integer number (14424480).

Almost surely, 2^169142451 is an apocalyptic number.

169142451 is a deficient number, since it is larger than the sum of its proper divisors (61649229).

169142451 is a wasteful number, since it uses less digits than its factorization.

169142451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4746.

The product of its digits is 8640, while the sum is 33.

The square root of 169142451 is about 13005.4777305565. The cubic root of 169142451 is about 553.0327788668.

The spelling of 169142451 in words is "one hundred sixty-nine million, one hundred forty-two thousand, four hundred fifty-one".