149503201 has 4 divisors (see below), whose sum is σ = 150874900. Its totient is φ = 148131504.

The previous prime is 149503187. The next prime is 149503231. The reversal of 149503201 is 102305941.

149503201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 102305941 = 59 ⋅1733999.

It can be written as a sum of positive squares in 2 ways, for example, as 122213025 + 27290176 = 11055^2 + 5224^2 .

It is a cyclic number.

It is not a de Polignac number, because 149503201 - 2⁷ = 149503073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149503231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 685686 + ... + 685903.

It is an arithmetic number, because the mean of its divisors is an integer number (37718725).

Almost surely, 2^149503201 is an apocalyptic number.

It is an amenable number.

149503201 is a deficient number, since it is larger than the sum of its proper divisors (1371699).

149503201 is a wasteful number, since it uses less digits than its factorization.

149503201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371698.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 149503201 is about 12227.1501585611. The cubic root of 149503201 is about 530.7420494576.

The spelling of 149503201 in words is "one hundred forty-nine million, five hundred three thousand, two hundred one".