138883754 has 8 divisors (see below), whose sum is σ = 208572420. Its totient is φ = 69359616.

The previous prime is 138883649. The next prime is 138883757. The reversal of 138883754 is 457388831.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 123099025 + 15784729 = 11095^2 + 3973^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 138883699 and 138883708.

It is not an unprimeable number, because it can be changed into a prime (138883757) 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, 38999 + ... + 42410.

Almost surely, 2^138883754 is an apocalyptic number.

138883754 is a deficient number, since it is larger than the sum of its proper divisors (69688666).

138883754 is an equidigital number, since it uses as much as digits as its factorization.

138883754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82264.

The product of its digits is 645120, while the sum is 47.

The square root of 138883754 is about 11784.8951628769. The cubic root of 138883754 is about 517.8657021295.

The spelling of 138883754 in words is "one hundred thirty-eight million, eight hundred eighty-three thousand, seven hundred fifty-four".