149419553 has 4 divisors (see below), whose sum is σ = 157283760. Its totient is φ = 141555348.

The previous prime is 149419541. The next prime is 149419559. The reversal of 149419553 is 355914941.

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.

It is a cyclic number.

It is not a de Polignac number, because 149419553 - 2⁸ = 149419297 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 149419553.

It is not an unprimeable number, because it can be changed into a prime (149419559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3932075 + ... + 3932112.

It is an arithmetic number, because the mean of its divisors is an integer number (39320940).

Almost surely, 2^149419553 is an apocalyptic number.

It is an amenable number.

149419553 is a deficient number, since it is larger than the sum of its proper divisors (7864207).

149419553 is an equidigital number, since it uses as much as digits as its factorization.

149419553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7864206.

The product of its digits is 97200, while the sum is 41.

The square root of 149419553 is about 12223.7290954929. The cubic root of 149419553 is about 530.6430464640.

The spelling of 149419553 in words is "one hundred forty-nine million, four hundred nineteen thousand, five hundred fifty-three".