149738237 has 4 divisors (see below), whose sum is σ = 163350816. Its totient is φ = 136125660.

The previous prime is 149738231. The next prime is 149738243. The reversal of 149738237 is 732837941.

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.

It is an interprime number because it is at equal distance from previous prime (149738231) and next prime (149738243).

It is not a de Polignac number, because 149738237 - 2¹⁰ = 149737213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149738231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6806273 + ... + 6806294.

It is an arithmetic number, because the mean of its divisors is an integer number (40837704).

Almost surely, 2^149738237 is an apocalyptic number.

It is an amenable number.

149738237 is a deficient number, since it is larger than the sum of its proper divisors (13612579).

149738237 is a wasteful number, since it uses less digits than its factorization.

149738237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13612578.

The product of its digits is 254016, while the sum is 44.

The square root of 149738237 is about 12236.7576179313. The cubic root of 149738237 is about 531.0200327477.

The spelling of 149738237 in words is "one hundred forty-nine million, seven hundred thirty-eight thousand, two hundred thirty-seven".