146918957 has 2 divisors, whose sum is σ = 146918958. Its totient is φ = 146918956.

The previous prime is 146918939. The next prime is 146918977. The reversal of 146918957 is 759819641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 134884996 + 12033961 = 11614^2 + 3469^2 .

It is a cyclic number.

It is not a de Polignac number, because 146918957 - 2⁸ = 146918701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146918977) 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, 73459478 + 73459479.

It is an arithmetic number, because the mean of its divisors is an integer number (73459479).

Almost surely, 2^146918957 is an apocalyptic number.

It is an amenable number.

146918957 is a deficient number, since it is larger than the sum of its proper divisors (1).

146918957 is an equidigital number, since it uses as much as digits as its factorization.

146918957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 50.

The square root of 146918957 is about 12121.0130352211. The cubic root of 146918957 is about 527.6662034020. Note that the first 3 decimals are identical.

The spelling of 146918957 in words is "one hundred forty-six million, nine hundred eighteen thousand, nine hundred fifty-seven".