149385473 has 2 divisors, whose sum is σ = 149385474. Its totient is φ = 149385472.

The previous prime is 149385449. The next prime is 149385487. The reversal of 149385473 is 374583941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88981489 + 60403984 = 9433^2 + 7772^2 .

It is a cyclic number.

It is not a de Polignac number, because 149385473 - 2²⁴ = 132608257 is a prime.

It is not a weakly prime, because it can be changed into another prime (149385413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74692736 + 74692737.

It is an arithmetic number, because the mean of its divisors is an integer number (74692737).

Almost surely, 2^149385473 is an apocalyptic number.

It is an amenable number.

149385473 is a deficient number, since it is larger than the sum of its proper divisors (1).

149385473 is an equidigital number, since it uses as much as digits as its factorization.

149385473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 44.

The square root of 149385473 is about 12222.3350060453. The cubic root of 149385473 is about 530.6026999146.

The spelling of 149385473 in words is "one hundred forty-nine million, three hundred eighty-five thousand, four hundred seventy-three".