145166139 has 12 divisors (see below), whose sum is σ = 209845272. Its totient is φ = 96703200.

The previous prime is 145166129. The next prime is 145166143. The reversal of 145166139 is 931661541.

145166139 is a `hidden beast` number, since 1 + 4 + 516 + 6 + 139 = 666.

It is not a de Polignac number, because 145166139 - 2⁵ = 145166107 is a prime.

It is a super-3 number, since 3×145166139³ (a number of 25 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (145166129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7884 + ... + 18774.

It is an arithmetic number, because the mean of its divisors is an integer number (17487106).

Almost surely, 2^145166139 is an apocalyptic number.

145166139 is a deficient number, since it is larger than the sum of its proper divisors (64679133).

145166139 is a wasteful number, since it uses less digits than its factorization.

145166139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12378 (or 12375 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 145166139 is about 12048.4911503474. The cubic root of 145166139 is about 525.5593602815.

The spelling of 145166139 in words is "one hundred forty-five million, one hundred sixty-six thousand, one hundred thirty-nine".