149338841 has 6 divisors (see below), whose sum is σ = 157612842. Its totient is φ = 141478560.

The previous prime is 149338831. The next prime is 149338843. The reversal of 149338841 is 148833941.

It can be written as a sum of positive squares in only one way, i.e., 136983616 + 12355225 = 11704^2 + 3515^2 .

It is not a de Polignac number, because 149338841 - 2¹⁴ = 149322457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149338843) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 206480 + ... + 207201.

It is an arithmetic number, because the mean of its divisors is an integer number (26268807).

Almost surely, 2^149338841 is an apocalyptic number.

It is an amenable number.

149338841 is a deficient number, since it is larger than the sum of its proper divisors (8274001).

149338841 is an equidigital number, since it uses as much as digits as its factorization.

149338841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413719 (or 413700 counting only the distinct ones).

The product of its digits is 82944, while the sum is 41.

The square root of 149338841 is about 12220.4272020253. The cubic root of 149338841 is about 530.5474833896.

The spelling of 149338841 in words is "one hundred forty-nine million, three hundred thirty-eight thousand, eight hundred forty-one".