149019 has 8 divisors (see below), whose sum is σ = 214032. Its totient is φ = 91680.

The previous prime is 149011. The next prime is 149021. The reversal of 149019 is 910941.

149019 = 101² + 102² + ... + 113².

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

It is not a de Polignac number, because 149019 - 2³ = 149011 is a prime.

It is a super-2 number, since 2×149019² = 44413324722, which contains 22 as substring.

149019 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 149019.

It is not an unprimeable number, because it can be changed into a prime (149011) 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, 1872 + ... + 1949.

It is an arithmetic number, because the mean of its divisors is an integer number (26754).

2¹⁴⁹⁰¹⁹ is an apocalyptic number.

149019 is a deficient number, since it is larger than the sum of its proper divisors (65013).

149019 is a wasteful number, since it uses less digits than its factorization.

149019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3837.

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 149019 is about 386.0297915965. The cubic root of 149019 is about 53.0168452447.

The spelling of 149019 in words is "one hundred forty-nine thousand, nineteen".