149165453 has 2 divisors, whose sum is σ = 149165454. Its totient is φ = 149165452.

The previous prime is 149165449. The next prime is 149165477. The reversal of 149165453 is 354561941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 146845924 + 2319529 = 12118^2 + 1523^2 .

It is a cyclic number.

It is not a de Polignac number, because 149165453 - 2² = 149165449 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 (149165483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74582726 + 74582727.

It is an arithmetic number, because the mean of its divisors is an integer number (74582727).

Almost surely, 2^149165453 is an apocalyptic number.

It is an amenable number.

149165453 is a deficient number, since it is larger than the sum of its proper divisors (1).

149165453 is an equidigital number, since it uses as much as digits as its factorization.

149165453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64800, while the sum is 38.

The square root of 149165453 is about 12213.3309543302. The cubic root of 149165453 is about 530.3420753593.

The spelling of 149165453 in words is "one hundred forty-nine million, one hundred sixty-five thousand, four hundred fifty-three".