138763298 has 8 divisors (see below), whose sum is σ = 211251792. Its totient is φ = 68346036.

The previous prime is 138763277. The next prime is 138763309. The reversal of 138763298 is 892367831.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 517640 + ... + 517907.

It is an arithmetic number, because the mean of its divisors is an integer number (26406474).

Almost surely, 2^138763298 is an apocalyptic number.

138763298 is a deficient number, since it is larger than the sum of its proper divisors (72488494).

138763298 is a wasteful number, since it uses less digits than its factorization.

138763298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1035616.

The product of its digits is 435456, while the sum is 47.

The square root of 138763298 is about 11779.7834445290. The cubic root of 138763298 is about 517.7159412149.

The spelling of 138763298 in words is "one hundred thirty-eight million, seven hundred sixty-three thousand, two hundred ninety-eight".