149271156 has 36 divisors (see below), whose sum is σ = 381572100. Its totient is φ = 49196928.

The previous prime is 149271151. The next prime is 149271191. The reversal of 149271156 is 651172941.

149271156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 17388900 + 131882256 = 4170^2 + 11484^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 149271156.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149271151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20091 + ... + 26498.

It is an arithmetic number, because the mean of its divisors is an integer number (10599225).

Almost surely, 2^149271156 is an apocalyptic number.

It is an amenable number.

149271156 is an abundant number, since it is smaller than the sum of its proper divisors (232300944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149271156 is a wasteful number, since it uses less digits than its factorization.

149271156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46688 (or 46683 counting only the distinct ones).

The product of its digits is 15120, while the sum is 36.

The square root of 149271156 is about 12217.6575496287. The cubic root of 149271156 is about 530.4673177458.

The spelling of 149271156 in words is "one hundred forty-nine million, two hundred seventy-one thousand, one hundred fifty-six".