149144401 has 4 divisors (see below), whose sum is σ = 170450752. Its totient is φ = 127838052.

The previous prime is 149144399. The next prime is 149144449. The reversal of 149144401 is 104441941.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 104441941 = 4397 ⋅23753.

It is a cyclic number.

It is not a de Polignac number, because 149144401 - 2¹ = 149144399 is a prime.

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 149144401.

It is not an unprimeable number, because it can be changed into a prime (149144701) 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, 10653165 + ... + 10653178.

It is an arithmetic number, because the mean of its divisors is an integer number (42612688).

Almost surely, 2^149144401 is an apocalyptic number.

It is an amenable number.

149144401 is a deficient number, since it is larger than the sum of its proper divisors (21306351).

149144401 is an equidigital number, since it uses as much as digits as its factorization.

149144401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21306350.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 149144401 is about 12212.4690787735. The cubic root of 149144401 is about 530.3171247950.

The spelling of 149144401 in words is "one hundred forty-nine million, one hundred forty-four thousand, four hundred one".