149271249 has 16 divisors (see below), whose sum is σ = 201484800. Its totient is φ = 98292096.

The previous prime is 149271193. The next prime is 149271289. The reversal of 149271249 is 942172941.

149271249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 149271249 - 2⁸ = 149270993 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (149271289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156157 + ... + 157109.

It is an arithmetic number, because the mean of its divisors is an integer number (12592800).

Almost surely, 2^149271249 is an apocalyptic number.

It is an amenable number.

149271249 is a deficient number, since it is larger than the sum of its proper divisors (52213551).

149271249 is a wasteful number, since it uses less digits than its factorization.

149271249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1544.

The product of its digits is 36288, while the sum is 39.

The square root of 149271249 is about 12217.6613555950. The cubic root of 149271249 is about 530.4674279110.

The spelling of 149271249 in words is "one hundred forty-nine million, two hundred seventy-one thousand, two hundred forty-nine".