146989719 has 24 divisors (see below), whose sum is σ = 231207600. Its totient is φ = 89631360.

The previous prime is 146989699. The next prime is 146989721. The reversal of 146989719 is 917989641.

It is not a de Polignac number, because 146989719 - 2¹² = 146985623 is a prime.

It is a super-2 number, since 2×146989719² = 43211954983397922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146989519) 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 23 ways as a sum of consecutive naturals, for example, 9862 + ... + 19779.

It is an arithmetic number, because the mean of its divisors is an integer number (9633650).

Almost surely, 2^146989719 is an apocalyptic number.

146989719 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

146989719 is a deficient number, since it is larger than the sum of its proper divisors (84217881).

146989719 is a wasteful number, since it uses less digits than its factorization.

146989719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29695 (or 29692 counting only the distinct ones).

The product of its digits is 979776, while the sum is 54.

The square root of 146989719 is about 12123.9316642746. The cubic root of 146989719 is about 527.7509047994.

The spelling of 146989719 in words is "one hundred forty-six million, nine hundred eighty-nine thousand, seven hundred nineteen".