149020 has 12 divisors (see below), whose sum is σ = 312984. Its totient is φ = 59600.

The previous prime is 149011. The next prime is 149021. The reversal of 149020 is 20941.

It is a junction number, because it is equal to n+sod(n) for n = 148985 and 149003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149021) by changing a digit.

149020 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3706 + ... + 3745.

It is an arithmetic number, because the mean of its divisors is an integer number (26082).

2¹⁴⁹⁰²⁰ is an apocalyptic number.

149020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149020 is an abundant number, since it is smaller than the sum of its proper divisors (163964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149020 is a wasteful number, since it uses less digits than its factorization.

149020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7460 (or 7458 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 149020 is about 386.0310868311. The cubic root of 149020 is about 53.0169638352.

Adding to 149020 its reverse (20941), we get a palindrome (169961).

The spelling of 149020 in words is "one hundred forty-nine thousand, twenty".