149297429 has 2 divisors, whose sum is σ = 149297430. Its totient is φ = 149297428.

The previous prime is 149297399. The next prime is 149297431. The reversal of 149297429 is 924792941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 149206225 + 91204 = 12215^2 + 302^2 .

It is an emirp because it is prime and its reverse (924792941) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149297429 is a prime.

Together with 149297431, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149297129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74648714 + 74648715.

It is an arithmetic number, because the mean of its divisors is an integer number (74648715).

Almost surely, 2^149297429 is an apocalyptic number.

It is an amenable number.

149297429 is a deficient number, since it is larger than the sum of its proper divisors (1).

149297429 is an equidigital number, since it uses as much as digits as its factorization.

149297429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 47.

The square root of 149297429 is about 12218.7327084277. The cubic root of 149297429 is about 530.4984381815.

The spelling of 149297429 in words is "one hundred forty-nine million, two hundred ninety-seven thousand, four hundred twenty-nine".