149016949 has 4 divisors (see below), whose sum is σ = 151542720. Its totient is φ = 146491180.

The previous prime is 149016913. The next prime is 149016979. The reversal of 149016949 is 949610941.

It is a happy number.

149016949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 949610941 = 31 ⋅30632611.

It is a cyclic number.

It is not a de Polignac number, because 149016949 - 2¹⁵ = 148984181 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149016979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1262797 + ... + 1262914.

It is an arithmetic number, because the mean of its divisors is an integer number (37885680).

Almost surely, 2^149016949 is an apocalyptic number.

It is an amenable number.

149016949 is a deficient number, since it is larger than the sum of its proper divisors (2525771).

149016949 is an equidigital number, since it uses as much as digits as its factorization.

149016949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2525770.

The product of its (nonzero) digits is 69984, while the sum is 43.

The square root of 149016949 is about 12207.2498540826. The cubic root of 149016949 is about 530.1660201385.

The spelling of 149016949 in words is "one hundred forty-nine million, sixteen thousand, nine hundred forty-nine".