149925899 has 2 divisors, whose sum is σ = 149925900. Its totient is φ = 149925898.

The previous prime is 149925883. The next prime is 149925931. The reversal of 149925899 is 998529941.

149925899 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (998529941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 149925899 - 2⁴ = 149925883 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (149925829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74962949 + 74962950.

It is an arithmetic number, because the mean of its divisors is an integer number (74962950).

Almost surely, 2^149925899 is an apocalyptic number.

149925899 is a deficient number, since it is larger than the sum of its proper divisors (1).

149925899 is an equidigital number, since it uses as much as digits as its factorization.

149925899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2099520, while the sum is 56.

The square root of 149925899 is about 12244.4231795540. The cubic root of 149925899 is about 531.2417767770.

The spelling of 149925899 in words is "one hundred forty-nine million, nine hundred twenty-five thousand, eight hundred ninety-nine".