149137818 has 8 divisors (see below), whose sum is σ = 298275648. Its totient is φ = 49712604.

The previous prime is 149137763. The next prime is 149137883. The reversal of 149137818 is 818731941.

149137818 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

149137818 is an admirable number.

It is a super-3 number, since 3×149137818³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 149137818.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12428146 + ... + 12428157.

It is an arithmetic number, because the mean of its divisors is an integer number (37284456).

Almost surely, 2^149137818 is an apocalyptic number.

149137818 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149137818 is a wasteful number, since it uses less digits than its factorization.

149137818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24856308.

The product of its digits is 48384, while the sum is 42.

The square root of 149137818 is about 12212.1995561815. The cubic root of 149137818 is about 530.3093222248.

The spelling of 149137818 in words is "one hundred forty-nine million, one hundred thirty-seven thousand, eight hundred eighteen".