146990957 has 2 divisors, whose sum is σ = 146990958. Its totient is φ = 146990956.

The previous prime is 146990947. The next prime is 146990983. The reversal of 146990957 is 759099641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79192201 + 67798756 = 8899^2 + 8234^2 .

It is a cyclic number.

It is not a de Polignac number, because 146990957 - 2⁴ = 146990941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146990947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73495478 + 73495479.

It is an arithmetic number, because the mean of its divisors is an integer number (73495479).

Almost surely, 2^146990957 is an apocalyptic number.

It is an amenable number.

146990957 is a deficient number, since it is larger than the sum of its proper divisors (1).

146990957 is an equidigital number, since it uses as much as digits as its factorization.

146990957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 612360, while the sum is 50.

The square root of 146990957 is about 12123.9827202120. The cubic root of 146990957 is about 527.7523864308.

The spelling of 146990957 in words is "one hundred forty-six million, nine hundred ninety thousand, nine hundred fifty-seven".