149387593 has 2 divisors, whose sum is σ = 149387594. Its totient is φ = 149387592.

The previous prime is 149387569. The next prime is 149387627. The reversal of 149387593 is 395783941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 145274809 + 4112784 = 12053^2 + 2028^2 .

It is a cyclic number.

It is not a de Polignac number, because 149387593 - 2⁵ = 149387561 is a prime.

It is not a weakly prime, because it can be changed into another prime (149387503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74693796 + 74693797.

It is an arithmetic number, because the mean of its divisors is an integer number (74693797).

Almost surely, 2^149387593 is an apocalyptic number.

It is an amenable number.

149387593 is a deficient number, since it is larger than the sum of its proper divisors (1).

149387593 is an equidigital number, since it uses as much as digits as its factorization.

149387593 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 816480, while the sum is 49.

The square root of 149387593 is about 12222.4217322100. The cubic root of 149387593 is about 530.6052099141.

The spelling of 149387593 in words is "one hundred forty-nine million, three hundred eighty-seven thousand, five hundred ninety-three".