146899901 has 2 divisors, whose sum is σ = 146899902. Its totient is φ = 146899900.

The previous prime is 146899889. The next prime is 146899903. The reversal of 146899901 is 109998641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113848900 + 33051001 = 10670^2 + 5749^2 .

It is an emirp because it is prime and its reverse (109998641) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 146899901 - 2¹⁰ = 146898877 is a prime.

Together with 146899903, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146899903) 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 as a sum of consecutive naturals, namely, 73449950 + 73449951.

It is an arithmetic number, because the mean of its divisors is an integer number (73449951).

Almost surely, 2^146899901 is an apocalyptic number.

It is an amenable number.

146899901 is a deficient number, since it is larger than the sum of its proper divisors (1).

146899901 is an equidigital number, since it uses as much as digits as its factorization.

146899901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 47.

The square root of 146899901 is about 12120.2269368193. The cubic root of 146899901 is about 527.6433889149.

The spelling of 146899901 in words is "one hundred forty-six million, eight hundred ninety-nine thousand, nine hundred one".