149597593 has 2 divisors, whose sum is σ = 149597594. Its totient is φ = 149597592.

The previous prime is 149597563. The next prime is 149597597. The reversal of 149597593 is 395795941.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120297024 + 29300569 = 10968^2 + 5413^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149597593 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 149597593.

It is not a weakly prime, because it can be changed into another prime (149597597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74798796 + 74798797.

It is an arithmetic number, because the mean of its divisors is an integer number (74798797).

Almost surely, 2^149597593 is an apocalyptic number.

It is an amenable number.

149597593 is a deficient number, since it is larger than the sum of its proper divisors (1).

149597593 is an equidigital number, since it uses as much as digits as its factorization.

149597593 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1530900, while the sum is 52.

The square root of 149597593 is about 12231.0094840941. The cubic root of 149597593 is about 530.8537243548.

The spelling of 149597593 in words is "one hundred forty-nine million, five hundred ninety-seven thousand, five hundred ninety-three".