149845957 has 2 divisors, whose sum is σ = 149845958. Its totient is φ = 149845956.

The previous prime is 149845931. The next prime is 149845961. The reversal of 149845957 is 759548941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 149475076 + 370881 = 12226^2 + 609^2 .

It is a cyclic number.

It is not a de Polignac number, because 149845957 - 2¹¹ = 149843909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149845057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74922978 + 74922979.

It is an arithmetic number, because the mean of its divisors is an integer number (74922979).

Almost surely, 2^149845957 is an apocalyptic number.

It is an amenable number.

149845957 is a deficient number, since it is larger than the sum of its proper divisors (1).

149845957 is an equidigital number, since it uses as much as digits as its factorization.

149845957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1814400, while the sum is 52.

The square root of 149845957 is about 12241.1583193748. The cubic root of 149845957 is about 531.1473388338.

The spelling of 149845957 in words is "one hundred forty-nine million, eight hundred forty-five thousand, nine hundred fifty-seven".