149263538 has 16 divisors (see below), whose sum is σ = 230364960. Its totient is φ = 72506016.

The previous prime is 149263531. The next prime is 149263549. The reversal of 149263538 is 835362941.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 149263495 and 149263504.

It is not an unprimeable number, because it can be changed into a prime (149263531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2153 + ... + 17411.

It is an arithmetic number, because the mean of its divisors is an integer number (14397810).

Almost surely, 2^149263538 is an apocalyptic number.

149263538 is a deficient number, since it is larger than the sum of its proper divisors (81101422).

149263538 is a wasteful number, since it uses less digits than its factorization.

149263538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15401.

The product of its digits is 155520, while the sum is 41.

The square root of 149263538 is about 12217.3457837617. The cubic root of 149263538 is about 530.4582935224.

The spelling of 149263538 in words is "one hundred forty-nine million, two hundred sixty-three thousand, five hundred thirty-eight".