146912639 has 8 divisors (see below), whose sum is σ = 151176960. Its totient is φ = 142686936.

The previous prime is 146912621. The next prime is 146912641. The reversal of 146912639 is 936219641.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146912639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 146912596 and 146912605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146912609) 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, 1847 + ... + 17240.

It is an arithmetic number, because the mean of its divisors is an integer number (18897120).

Almost surely, 2^146912639 is an apocalyptic number.

146912639 is a deficient number, since it is larger than the sum of its proper divisors (4264321).

146912639 is a wasteful number, since it uses less digits than its factorization.

146912639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19309.

The product of its digits is 69984, while the sum is 41.

The square root of 146912639 is about 12120.7524106385. The cubic root of 146912639 is about 527.6586394975.

The spelling of 146912639 in words is "one hundred forty-six million, nine hundred twelve thousand, six hundred thirty-nine".