149738 has 4 divisors (see below), whose sum is σ = 224610. Its totient is φ = 74868.

The previous prime is 149731. The next prime is 149749. The reversal of 149738 is 837941.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 139129 + 10609 = 373^2 + 103^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (149731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37433 + ... + 37436.

2¹⁴⁹⁷³⁸ is an apocalyptic number.

149738 is a deficient number, since it is larger than the sum of its proper divisors (74872).

149738 is an equidigital number, since it uses as much as digits as its factorization.

149738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74871.

The product of its digits is 6048, while the sum is 32.

The square root of 149738 is about 386.9599462477. The cubic root of 149738 is about 53.1019752588.

The spelling of 149738 in words is "one hundred forty-nine thousand, seven hundred thirty-eight".