149971498 has 4 divisors (see below), whose sum is σ = 224957250. Its totient is φ = 74985748.

The previous prime is 149971469. The next prime is 149971513. The reversal of 149971498 is 894179941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 894179941 = 269 ⋅3324089.

It can be written as a sum of positive squares in only one way, i.e., 149499529 + 471969 = 12227^2 + 687^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37492873 + ... + 37492876.

Almost surely, 2^149971498 is an apocalyptic number.

149971498 is a deficient number, since it is larger than the sum of its proper divisors (74985752).

149971498 is an equidigital number, since it uses as much as digits as its factorization.

149971498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74985751.

The product of its digits is 653184, while the sum is 52.

The square root of 149971498 is about 12246.2850693588. The cubic root of 149971498 is about 531.2956292434.

The spelling of 149971498 in words is "one hundred forty-nine million, nine hundred seventy-one thousand, four hundred ninety-eight".