149271151 has 2 divisors, whose sum is σ = 149271152. Its totient is φ = 149271150.

The previous prime is 149271043. The next prime is 149271191. The reversal of 149271151 is 151172941.

It is a strong prime.

It is an emirp because it is prime and its reverse (151172941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 149271151 - 2¹³ = 149262959 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149271191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74635575 + 74635576.

It is an arithmetic number, because the mean of its divisors is an integer number (74635576).

Almost surely, 2^149271151 is an apocalyptic number.

149271151 is a deficient number, since it is larger than the sum of its proper divisors (1).

149271151 is an equidigital number, since it uses as much as digits as its factorization.

149271151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2520, while the sum is 31.

The square root of 149271151 is about 12217.6573450069. The cubic root of 149271151 is about 530.4673118230.

The spelling of 149271151 in words is "one hundred forty-nine million, two hundred seventy-one thousand, one hundred fifty-one".