149913271 has 2 divisors, whose sum is σ = 149913272. Its totient is φ = 149913270.

The previous prime is 149913263. The next prime is 149913317. The reversal of 149913271 is 172319941.

It is a weak prime.

It is an emirp because it is prime and its reverse (172319941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 149913271 - 2³ = 149913263 is a prime.

It is a Chen prime.

It is a pancake number, because a pancake can be divided into 149913271 parts by 17315 straight cuts.

It is a self number, because there is not a number n which added to its sum of digits gives 149913271.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149983271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74956635 + 74956636.

It is an arithmetic number, because the mean of its divisors is an integer number (74956636).

Almost surely, 2^149913271 is an apocalyptic number.

149913271 is a deficient number, since it is larger than the sum of its proper divisors (1).

149913271 is an equidigital number, since it uses as much as digits as its factorization.

149913271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13608, while the sum is 37.

The square root of 149913271 is about 12243.9075053677. The cubic root of 149913271 is about 531.2268611652.

The spelling of 149913271 in words is "one hundred forty-nine million, nine hundred thirteen thousand, two hundred seventy-one".