149504249 has 4 divisors (see below), whose sum is σ = 152981136. Its totient is φ = 146027364.

The previous prime is 149504237. The next prime is 149504263. The reversal of 149504249 is 942405941.

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: 942405941 = 1423 ⋅662267.

It is a cyclic number.

It is not a de Polignac number, because 149504249 - 2⁸ = 149503993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149501249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1738379 + ... + 1738464.

It is an arithmetic number, because the mean of its divisors is an integer number (38245284).

Almost surely, 2^149504249 is an apocalyptic number.

It is an amenable number.

149504249 is a deficient number, since it is larger than the sum of its proper divisors (3476887).

149504249 is an equidigital number, since it uses as much as digits as its factorization.

149504249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3476886.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 149504249 is about 12227.1930139341. The cubic root of 149504249 is about 530.7432896013.

The spelling of 149504249 in words is "one hundred forty-nine million, five hundred four thousand, two hundred forty-nine".