149015 has 4 divisors (see below), whose sum is σ = 178824. Its totient is φ = 119208.

The previous prime is 149011. The next prime is 149021. The reversal of 149015 is 510941.

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 149015 - 2² = 149011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 149015.

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 3 ways as a sum of consecutive naturals, for example, 14897 + ... + 14906.

It is an arithmetic number, because the mean of its divisors is an integer number (44706).

2¹⁴⁹⁰¹⁵ is an apocalyptic number.

149015 is a deficient number, since it is larger than the sum of its proper divisors (29809).

149015 is an equidigital number, since it uses as much as digits as its factorization.

149015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29808.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 149015 is about 386.0246106144. The cubic root of 149015 is about 53.0163708773.

Adding to 149015 its reverse (510941), we get a palindrome (659956).

The spelling of 149015 in words is "one hundred forty-nine thousand, fifteen".