107242138 has 8 divisors (see below), whose sum is σ = 161752500. Its totient is φ = 53324640.

The previous prime is 107242127. The next prime is 107242151. The reversal of 107242138 is 831242701.

It can be written as a sum of positive squares in 2 ways, for example, as 104509729 + 2732409 = 10223^2 + 1653^2 .

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

It is a super-2 number, since 2×107242138² = 23001752325622088, which contains 22 as substring.

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, 147763 + ... + 148486.

Almost surely, 2^107242138 is an apocalyptic number.

107242138 is a deficient number, since it is larger than the sum of its proper divisors (54510362).

107242138 is a wasteful number, since it uses less digits than its factorization.

107242138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296432.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 107242138 is about 10355.7780007105. The cubic root of 107242138 is about 475.1037823092.

Adding to 107242138 its reverse (831242701), we get a palindrome (938484839).

The spelling of 107242138 in words is "one hundred seven million, two hundred forty-two thousand, one hundred thirty-eight".