169064531 has 4 divisors (see below), whose sum is σ = 169218912. Its totient is φ = 168910152.

The previous prime is 169064471. The next prime is 169064563. The reversal of 169064531 is 135460961.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 135460961 = 23 ⋅5889607.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-169064531 is a prime.

It is a super-2 number, since 2×169064531² = 57165631284499922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 169064491 and 169064500.

It is not an unprimeable number, because it can be changed into a prime (169064591) 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 3 ways as a sum of consecutive naturals, for example, 75536 + ... + 77741.

It is an arithmetic number, because the mean of its divisors is an integer number (42304728).

Almost surely, 2^169064531 is an apocalyptic number.

169064531 is a deficient number, since it is larger than the sum of its proper divisors (154381).

169064531 is a wasteful number, since it uses less digits than its factorization.

169064531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154380.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 169064531 is about 13002.4817246555. The cubic root of 169064531 is about 552.9478427025.

The spelling of 169064531 in words is "one hundred sixty-nine million, sixty-four thousand, five hundred thirty-one".