169252993 has 24 divisors (see below), whose sum is σ = 210921408. Its totient is φ = 132979392.

The previous prime is 169252987. The next prime is 169253011. The reversal of 169252993 is 399252961.

It is not a de Polignac number, because 169252993 - 2²¹ = 167155841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (169252943) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 204246 + ... + 205072.

It is an arithmetic number, because the mean of its divisors is an integer number (8788392).

Almost surely, 2^169252993 is an apocalyptic number.

169252993 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

169252993 is a deficient number, since it is larger than the sum of its proper divisors (41668415).

169252993 is a wasteful number, since it uses less digits than its factorization.

169252993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033 (or 1020 counting only the distinct ones).

The product of its digits is 262440, while the sum is 46.

The square root of 169252993 is about 13009.7268610836. The cubic root of 169252993 is about 553.1532296784.

The spelling of 169252993 in words is "one hundred sixty-nine million, two hundred fifty-two thousand, nine hundred ninety-three".