149244437 has 4 divisors (see below), whose sum is σ = 149281356. Its totient is φ = 149207520.

The previous prime is 149244409. The next prime is 149244451. The reversal of 149244437 is 734442941.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 734442941 = 191 ⋅3845251.

It can be written as a sum of positive squares in 2 ways, for example, as 108972721 + 40271716 = 10439^2 + 6346^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149244437 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 149244437.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149244497) 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, 11528 + ... + 20769.

It is an arithmetic number, because the mean of its divisors is an integer number (37320339).

Almost surely, 2^149244437 is an apocalyptic number.

It is an amenable number.

149244437 is a deficient number, since it is larger than the sum of its proper divisors (36919).

149244437 is an equidigital number, since it uses as much as digits as its factorization.

149244437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36918.

The product of its digits is 96768, while the sum is 38.

The square root of 149244437 is about 12216.5640423157. The cubic root of 149244437 is about 530.4356652766.

The spelling of 149244437 in words is "one hundred forty-nine million, two hundred forty-four thousand, four hundred thirty-seven".