138098288 has 20 divisors (see below), whose sum is σ = 269117448. Its totient is φ = 68648640.

The previous prime is 138098287. The next prime is 138098297. The reversal of 138098288 is 882890831.

It is a super-2 number, since 2×138098288² = 38142274297061888, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138098287) by changing a digit.

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, 22178 + ... + 27713.

Almost surely, 2^138098288 is an apocalyptic number.

It is an amenable number.

138098288 is a deficient number, since it is larger than the sum of its proper divisors (131019160).

138098288 is a wasteful number, since it uses less digits than its factorization.

138098288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50072 (or 50066 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 47.

The square root of 138098288 is about 11751.5227949402. The cubic root of 138098288 is about 516.8875816065.

The spelling of 138098288 in words is "one hundred thirty-eight million, ninety-eight thousand, two hundred eighty-eight".