146989720 has 32 divisors (see below), whose sum is σ = 333118800. Its totient is φ = 58370688.

The previous prime is 146989699. The next prime is 146989721. The reversal of 146989720 is 27989641.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

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 (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7659 + ... + 18778.

Almost surely, 2^146989720 is an apocalyptic number.

146989720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

146989720 is an abundant number, since it is smaller than the sum of its proper divisors (186129080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

146989720 is a wasteful number, since it uses less digits than its factorization.

146989720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26587 (or 26583 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 146989720 is about 12123.9317055153. The cubic root of 146989720 is about 527.7509059962.

The spelling of 146989720 in words is "one hundred forty-six million, nine hundred eighty-nine thousand, seven hundred twenty".