149838437 has 4 divisors (see below), whose sum is σ = 171243936. Its totient is φ = 128432940.

The previous prime is 149838371. The next prime is 149838439. The reversal of 149838437 is 734838941.

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: 734838941 = 41 ⋅17922901.

It is a cyclic number.

It is not a de Polignac number, because 149838437 - 2⁸ = 149838181 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 149838391 and 149838400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149838439) 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, 10702739 + ... + 10702752.

It is an arithmetic number, because the mean of its divisors is an integer number (42810984).

Almost surely, 2^149838437 is an apocalyptic number.

It is an amenable number.

149838437 is a deficient number, since it is larger than the sum of its proper divisors (21405499).

149838437 is an equidigital number, since it uses as much as digits as its factorization.

149838437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21405498.

The product of its digits is 580608, while the sum is 47.

The square root of 149838437 is about 12240.8511550464. The cubic root of 149838437 is about 531.1384534983.

The spelling of 149838437 in words is "one hundred forty-nine million, eight hundred thirty-eight thousand, four hundred thirty-seven".