146544139 has 8 divisors (see below), whose sum is σ = 167618528. Its totient is φ = 125504640.

The previous prime is 146544137. The next prime is 146544173. The reversal of 146544139 is 931445641.

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

It is a cyclic number.

It is not a de Polignac number, because 146544139 - 2¹ = 146544137 is a prime.

It is a super-3 number, since 3×146544139³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 146544098 and 146544107.

It is not an unprimeable number, because it can be changed into a prime (146544137) 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, 1009 + ... + 17149.

It is an arithmetic number, because the mean of its divisors is an integer number (20952316).

Almost surely, 2^146544139 is an apocalyptic number.

146544139 is a deficient number, since it is larger than the sum of its proper divisors (21074389).

146544139 is a wasteful number, since it uses less digits than its factorization.

146544139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17445.

The product of its digits is 51840, while the sum is 37.

The square root of 146544139 is about 12105.5416648740. The cubic root of 146544139 is about 527.2170958935.

The spelling of 146544139 in words is "one hundred forty-six million, five hundred forty-four thousand, one hundred thirty-nine".