149368399 has 2 divisors, whose sum is σ = 149368400. Its totient is φ = 149368398.

The previous prime is 149368337. The next prime is 149368403. The reversal of 149368399 is 993863941.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 149368399 - 2⁹ = 149367887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149360399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74684199 + 74684200.

It is an arithmetic number, because the mean of its divisors is an integer number (74684200).

Almost surely, 2^149368399 is an apocalyptic number.

149368399 is a deficient number, since it is larger than the sum of its proper divisors (1).

149368399 is an equidigital number, since it uses as much as digits as its factorization.

149368399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1259712, while the sum is 52.

The square root of 149368399 is about 12221.6365107133. The cubic root of 149368399 is about 530.5824840808.

The spelling of 149368399 in words is "one hundred forty-nine million, three hundred sixty-eight thousand, three hundred ninety-nine".