149271929 has 2 divisors, whose sum is σ = 149271930. Its totient is φ = 149271928.

The previous prime is 149271907. The next prime is 149271937. The reversal of 149271929 is 929172941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93799225 + 55472704 = 9685^2 + 7448^2 .

It is a cyclic number.

It is not a de Polignac number, because 149271929 - 2⁸ = 149271673 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 149271929.

It is not a weakly prime, because it can be changed into another prime (149276929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74635964 + 74635965.

It is an arithmetic number, because the mean of its divisors is an integer number (74635965).

Almost surely, 2^149271929 is an apocalyptic number.

It is an amenable number.

149271929 is a deficient number, since it is larger than the sum of its proper divisors (1).

149271929 is an equidigital number, since it uses as much as digits as its factorization.

149271929 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81648, while the sum is 44.

The square root of 149271929 is about 12217.6891841297. The cubic root of 149271929 is about 530.4682334184.

The spelling of 149271929 in words is "one hundred forty-nine million, two hundred seventy-one thousand, nine hundred twenty-nine".