169900045 has 16 divisors (see below), whose sum is σ = 235272960. Its totient is φ = 115369344.

The previous prime is 169900037. The next prime is 169900063. The reversal of 169900045 is 540009961.

It is a cyclic number.

It is not a de Polignac number, because 169900045 - 2³ = 169900037 is a prime.

It is a congruent number.

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, 19960 + ... + 27169.

It is an arithmetic number, because the mean of its divisors is an integer number (14704560).

Almost surely, 2^169900045 is an apocalyptic number.

It is an amenable number.

169900045 is a deficient number, since it is larger than the sum of its proper divisors (65372915).

169900045 is a wasteful number, since it uses less digits than its factorization.

169900045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47244.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 169900045 is about 13034.5711475292. The cubic root of 169900045 is about 553.8572325187.

The spelling of 169900045 in words is "one hundred sixty-nine million, nine hundred thousand, forty-five".