149135318 has 4 divisors (see below), whose sum is σ = 223702980. Its totient is φ = 74567658.

The previous prime is 149135317. The next prime is 149135321. The reversal of 149135318 is 813531941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 813531941 = 6829 ⋅119129.

It is a super-2 number, since 2×149135318² = 44482686149922248, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149135317) 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 as a sum of consecutive naturals, namely, 37283828 + ... + 37283831.

It is an arithmetic number, because the mean of its divisors is an integer number (55925745).

Almost surely, 2^149135318 is an apocalyptic number.

149135318 is a deficient number, since it is larger than the sum of its proper divisors (74567662).

149135318 is an equidigital number, since it uses as much as digits as its factorization.

149135318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74567661.

The product of its digits is 12960, while the sum is 35.

The square root of 149135318 is about 12212.0971990891. The cubic root of 149135318 is about 530.3063590132.

The spelling of 149135318 in words is "one hundred forty-nine million, one hundred thirty-five thousand, three hundred eighteen".