13138950 has 48 divisors (see below), whose sum is σ = 35551296. Its totient is φ = 3184800.

The previous prime is 13138949. The next prime is 13138997. The reversal of 13138950 is 5983131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2332 + ... + 5631.

It is an arithmetic number, because the mean of its divisors is an integer number (740652).

Almost surely, 2^13138950 is an apocalyptic number.

13138950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13138950 is an abundant number, since it is smaller than the sum of its proper divisors (22412346).

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

13138950 is a wasteful number, since it uses less digits than its factorization.

13138950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7989 (or 7984 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 13138950 is about 3624.7689581544. The cubic root of 13138950 is about 235.9682400045.

The spelling of 13138950 in words is "thirteen million, one hundred thirty-eight thousand, nine hundred fifty".