146989725 has 12 divisors (see below), whose sum is σ = 243023136. Its totient is φ = 78394480.

The previous prime is 146989721. The next prime is 146989741. The reversal of 146989725 is 527989641.

It is not a de Polignac number, because 146989725 - 2² = 146989721 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146989721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 979857 + ... + 980006.

It is an arithmetic number, because the mean of its divisors is an integer number (20251928).

Almost surely, 2^146989725 is an apocalyptic number.

146989725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

146989725 is a deficient number, since it is larger than the sum of its proper divisors (96033411).

146989725 is a wasteful number, since it uses less digits than its factorization.

146989725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1959876 (or 1959871 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 51.

The square root of 146989725 is about 12123.9319117191. The cubic root of 146989725 is about 527.7509119802.

The spelling of 146989725 in words is "one hundred forty-six million, nine hundred eighty-nine thousand, seven hundred twenty-five".