149206173 has 8 divisors (see below), whose sum is σ = 203568288. Its totient is φ = 97157424.

The previous prime is 149206159. The next prime is 149206181. The reversal of 149206173 is 371602941.

149206173 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 149206173 - 2⁴ = 149206157 is a prime.

It is a super-2 number, since 2×149206173² = 44524964122611858, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149206133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 578190 + ... + 578447.

It is an arithmetic number, because the mean of its divisors is an integer number (25446036).

Almost surely, 2^149206173 is an apocalyptic number.

It is an amenable number.

149206173 is a deficient number, since it is larger than the sum of its proper divisors (54362115).

149206173 is a wasteful number, since it uses less digits than its factorization.

149206173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156683.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 149206173 is about 12214.9978714693. The cubic root of 149206173 is about 530.3903295273.

The spelling of 149206173 in words is "one hundred forty-nine million, two hundred six thousand, one hundred seventy-three".