149641839 has 12 divisors (see below), whose sum is σ = 216890856. Its totient is φ = 99418992.

The previous prime is 149641829. The next prime is 149641847. The reversal of 149641839 is 938146941.

It is not a de Polignac number, because 149641839 - 2¹² = 149637743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 149641794 and 149641803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149641829) 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 11 ways as a sum of consecutive naturals, for example, 25737 + ... + 31010.

It is an arithmetic number, because the mean of its divisors is an integer number (18074238).

Almost surely, 2^149641839 is an apocalyptic number.

149641839 is a deficient number, since it is larger than the sum of its proper divisors (67249017).

149641839 is a wasteful number, since it uses less digits than its factorization.

149641839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57046 (or 57043 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 149641839 is about 12232.8181135828. The cubic root of 149641839 is about 530.9060554967.

The spelling of 149641839 in words is "one hundred forty-nine million, six hundred forty-one thousand, eight hundred thirty-nine".