149741919 has 8 divisors (see below), whose sum is σ = 221839920. Its totient is φ = 99827928.

The previous prime is 149741909. The next prime is 149741927. The reversal of 149741919 is 919147941.

It is not a de Polignac number, because 149741919 - 2⁴ = 149741903 is a prime.

It is a super-2 number, since 2×149741919² = 44845284611605122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149741909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2772972 + ... + 2773025.

It is an arithmetic number, because the mean of its divisors is an integer number (27729990).

Almost surely, 2^149741919 is an apocalyptic number.

149741919 is a deficient number, since it is larger than the sum of its proper divisors (72098001).

149741919 is an equidigital number, since it uses as much as digits as its factorization.

149741919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5546006 (or 5546000 counting only the distinct ones).

The product of its digits is 81648, while the sum is 45.

The square root of 149741919 is about 12236.9080653570. The cubic root of 149741919 is about 531.0243852314.

The spelling of 149741919 in words is "one hundred forty-nine million, seven hundred forty-one thousand, nine hundred nineteen".