149270903 has 2 divisors, whose sum is σ = 149270904. Its totient is φ = 149270902.

The previous prime is 149270879. The next prime is 149270923. The reversal of 149270903 is 309072941.

It is a strong prime.

It is an emirp because it is prime and its reverse (309072941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 149270903 - 2¹² = 149266807 is a prime.

It is a Sophie Germain prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149270923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74635451 + 74635452.

It is an arithmetic number, because the mean of its divisors is an integer number (74635452).

Almost surely, 2^149270903 is an apocalyptic number.

149270903 is a deficient number, since it is larger than the sum of its proper divisors (1).

149270903 is an equidigital number, since it uses as much as digits as its factorization.

149270903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 149270903 is about 12217.6471957575. The cubic root of 149270903 is about 530.4670180489.

The spelling of 149270903 in words is "one hundred forty-nine million, two hundred seventy thousand, nine hundred three".