138294499 has 16 divisors (see below), whose sum is σ = 161568000. Its totient is φ = 115926624.

The previous prime is 138294479. The next prime is 138294509. The reversal of 138294499 is 994492831.

138294499 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 138294499 - 2¹³ = 138286307 is a prime.

It is a super-2 number, since 2×138294499² = 38250736907322002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138294479) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68892 + ... + 70870.

It is an arithmetic number, because the mean of its divisors is an integer number (10098000).

Almost surely, 2^138294499 is an apocalyptic number.

138294499 is a deficient number, since it is larger than the sum of its proper divisors (23273501).

138294499 is a wasteful number, since it uses less digits than its factorization.

138294499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2202.

The product of its digits is 559872, while the sum is 49.

The square root of 138294499 is about 11759.8681540228. The cubic root of 138294499 is about 517.1322649074.

The spelling of 138294499 in words is "one hundred thirty-eight million, two hundred ninety-four thousand, four hundred ninety-nine".