149485019 has 4 divisors (see below), whose sum is σ = 150236400. Its totient is φ = 148733640.

The previous prime is 149485009. The next prime is 149485067. The reversal of 149485019 is 910584941.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 149485019 - 2⁴ = 149485003 is a prime.

It is a super-2 number, since 2×149485019² = 44691541810860722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149485009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 375392 + ... + 375789.

It is an arithmetic number, because the mean of its divisors is an integer number (37559100).

Almost surely, 2^149485019 is an apocalyptic number.

149485019 is a deficient number, since it is larger than the sum of its proper divisors (751381).

149485019 is an equidigital number, since it uses as much as digits as its factorization.

149485019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751380.

The product of its (nonzero) digits is 51840, while the sum is 41.

The square root of 149485019 is about 12226.4066266422. The cubic root of 149485019 is about 530.7205329882.

The spelling of 149485019 in words is "one hundred forty-nine million, four hundred eighty-five thousand, nineteen".