149481798 has 8 divisors (see below), whose sum is σ = 298963608. Its totient is φ = 49827264.

The previous prime is 149481793. The next prime is 149481817. The reversal of 149481798 is 897184941.

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

149481798 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 149481798.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149481793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12456811 + ... + 12456822.

It is an arithmetic number, because the mean of its divisors is an integer number (37370451).

Almost surely, 2^149481798 is an apocalyptic number.

149481798 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.

149481798 is a wasteful number, since it uses less digits than its factorization.

149481798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24913638.

The product of its digits is 580608, while the sum is 51.

The square root of 149481798 is about 12226.2749028476. The cubic root of 149481798 is about 530.7167210942.

The spelling of 149481798 in words is "one hundred forty-nine million, four hundred eighty-one thousand, seven hundred ninety-eight".