149454719 has 8 divisors (see below), whose sum is σ = 154746720. Its totient is φ = 144172000.

The previous prime is 149454709. The next prime is 149454727. The reversal of 149454719 is 917454941.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149454719 is a prime.

It is a super-2 number, since 2×149454719² = 44673426062737922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 149454719.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149454709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53774 + ... + 56484.

It is an arithmetic number, because the mean of its divisors is an integer number (19343340).

Almost surely, 2^149454719 is an apocalyptic number.

149454719 is a deficient number, since it is larger than the sum of its proper divisors (5292001).

149454719 is a wasteful number, since it uses less digits than its factorization.

149454719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4641.

The product of its digits is 181440, while the sum is 44.

The square root of 149454719 is about 12225.1674426161. The cubic root of 149454719 is about 530.6846722737.

The spelling of 149454719 in words is "one hundred forty-nine million, four hundred fifty-four thousand, seven hundred nineteen".