169548945 has 16 divisors (see below), whose sum is σ = 271582080. Its totient is φ = 90324864.

The previous prime is 169548917. The next prime is 169548959. The reversal of 169548945 is 549845961.

It is not a de Polignac number, because 169548945 - 2¹⁵ = 169516177 is a prime.

It is a super-2 number, since 2×169548945² = 57493689501226050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8661 + ... + 20349.

It is an arithmetic number, because the mean of its divisors is an integer number (16973880).

Almost surely, 2^169548945 is an apocalyptic number.

169548945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

169548945 is a deficient number, since it is larger than the sum of its proper divisors (102033135).

169548945 is a wasteful number, since it uses less digits than its factorization.

169548945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12664.

The product of its digits is 1555200, while the sum is 51.

The square root of 169548945 is about 13021.0961520142. The cubic root of 169548945 is about 553.4754523982.

The spelling of 169548945 in words is "one hundred sixty-nine million, five hundred forty-eight thousand, nine hundred forty-five".