146989699 has 2 divisors, whose sum is σ = 146989700. Its totient is φ = 146989698.

The previous prime is 146989679. The next prime is 146989721. The reversal of 146989699 is 996989641.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 146989699 - 2⁷ = 146989571 is a prime.

It is a super-2 number, since 2×146989699² = 43211943224221202, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (146989669) 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 as a sum of consecutive naturals, namely, 73494849 + 73494850.

It is an arithmetic number, because the mean of its divisors is an integer number (73494850).

Almost surely, 2^146989699 is an apocalyptic number.

146989699 is a deficient number, since it is larger than the sum of its proper divisors (1).

146989699 is an equidigital number, since it uses as much as digits as its factorization.

146989699 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7558272, while the sum is 61.

The square root of 146989699 is about 12123.9308394596. The cubic root of 146989699 is about 527.7508808634.

The spelling of 146989699 in words is "one hundred forty-six million, nine hundred eighty-nine thousand, six hundred ninety-nine".