149275399 has 16 divisors (see below), whose sum is σ = 184246272. Its totient is φ = 117772128.

The previous prime is 149275331. The next prime is 149275409. The reversal of 149275399 is 993572941.

It is a cyclic number.

It is not a de Polignac number, because 149275399 - 2¹⁹ = 148751111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149275309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32712 + ... + 36994.

It is an arithmetic number, because the mean of its divisors is an integer number (11515392).

Almost surely, 2^149275399 is an apocalyptic number.

149275399 is a deficient number, since it is larger than the sum of its proper divisors (34970873).

149275399 is a wasteful number, since it uses less digits than its factorization.

149275399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4686.

The product of its digits is 612360, while the sum is 49.

The square root of 149275399 is about 12217.8311905182. The cubic root of 149275399 is about 530.4723438374.

The spelling of 149275399 in words is "one hundred forty-nine million, two hundred seventy-five thousand, three hundred ninety-nine".