10138995 has 24 divisors (see below), whose sum is σ = 17667936. Its totient is φ = 5378688.

The previous prime is 10138991. The next prime is 10139023. The reversal of 10138995 is 59983101.

It is a happy number.

It is not a de Polignac number, because 10138995 - 2² = 10138991 is a prime.

It is a super-2 number, since 2×10138995² = 205598439220050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10138991) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10002 + ... + 10968.

It is an arithmetic number, because the mean of its divisors is an integer number (736164).

Almost surely, 2^10138995 is an apocalyptic number.

10138995 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10138995 is a deficient number, since it is larger than the sum of its proper divisors (7528941).

10138995 is a wasteful number, since it uses less digits than its factorization.

10138995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1211 (or 1208 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 36.

The square root of 10138995 is about 3184.1788580417. The cubic root of 10138995 is about 216.4370651271.

The spelling of 10138995 in words is "ten million, one hundred thirty-eight thousand, nine hundred ninety-five".