145908190 has 32 divisors (see below), whose sum is σ = 267079680. Its totient is φ = 57382944.

The previous prime is 145908167. The next prime is 145908211. The reversal of 145908190 is 91809541.

145908190 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×145908190² = 42578399818152200, which contains 22 as substring.

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, 304371 + ... + 304849.

It is an arithmetic number, because the mean of its divisors is an integer number (8346240).

Almost surely, 2^145908190 is an apocalyptic number.

145908190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145908190 is a deficient number, since it is larger than the sum of its proper divisors (121171490).

145908190 is a wasteful number, since it uses less digits than its factorization.

145908190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936.

The product of its (nonzero) digits is 12960, while the sum is 37.

The square root of 145908190 is about 12079.2462513188. The cubic root of 145908190 is about 526.4533456614.

The spelling of 145908190 in words is "one hundred forty-five million, nine hundred eight thousand, one hundred ninety".