138770276 has 12 divisors (see below), whose sum is σ = 249411708. Its totient is φ = 67509792.

The previous prime is 138770267. The next prime is 138770297. The reversal of 138770276 is 672077831.

It can be written as a sum of positive squares in 2 ways, for example, as 126337600 + 12432676 = 11240^2 + 3526^2 .

It is a super-2 number, since 2×138770276² = 38514379002232352, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 468671 + ... + 468966.

It is an arithmetic number, because the mean of its divisors is an integer number (20784309).

Almost surely, 2^138770276 is an apocalyptic number.

It is an amenable number.

138770276 is a deficient number, since it is larger than the sum of its proper divisors (110641432).

138770276 is a wasteful number, since it uses less digits than its factorization.

138770276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 937678 (or 937676 counting only the distinct ones).

The product of its (nonzero) digits is 98784, while the sum is 41.

The square root of 138770276 is about 11780.0796262165. The cubic root of 138770276 is about 517.7246192090.

The spelling of 138770276 in words is "one hundred thirty-eight million, seven hundred seventy thousand, two hundred seventy-six".