149548538 has 4 divisors (see below), whose sum is σ = 224322810. Its totient is φ = 74774268.

The previous prime is 149548523. The next prime is 149548547. The reversal of 149548538 is 835845941.

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: 835845941 = 7 ⋅119406563.

It can be written as a sum of positive squares in only one way, i.e., 118222129 + 31326409 = 10873^2 + 5597^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 149548492 and 149548501.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37387133 + ... + 37387136.

Almost surely, 2^149548538 is an apocalyptic number.

149548538 is a deficient number, since it is larger than the sum of its proper divisors (74774272).

149548538 is an equidigital number, since it uses as much as digits as its factorization.

149548538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74774271.

The product of its digits is 691200, while the sum is 47.

The square root of 149548538 is about 12229.0039659819. The cubic root of 149548538 is about 530.7956933935.

The spelling of 149548538 in words is "one hundred forty-nine million, five hundred forty-eight thousand, five hundred thirty-eight".