149744451 has 16 divisors (see below), whose sum is σ = 203847840. Its totient is φ = 97743360.

The previous prime is 149744443. The next prime is 149744459. The reversal of 149744451 is 154447941.

It is an interprime number because it is at equal distance from previous prime (149744443) and next prime (149744459).

It is not a de Polignac number, because 149744451 - 2³ = 149744443 is a prime.

It is a super-3 number, since 3×149744451³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (149744459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139545 + ... + 140613.

It is an arithmetic number, because the mean of its divisors is an integer number (12740490).

Almost surely, 2^149744451 is an apocalyptic number.

149744451 is a deficient number, since it is larger than the sum of its proper divisors (54103389).

149744451 is a wasteful number, since it uses less digits than its factorization.

149744451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2006.

The product of its digits is 80640, while the sum is 39.

The square root of 149744451 is about 12237.0115224265. The cubic root of 149744451 is about 531.0273782614.

The spelling of 149744451 in words is "one hundred forty-nine million, seven hundred forty-four thousand, four hundred fifty-one".