10520138 has 8 divisors (see below), whose sum is σ = 15794688. Its totient is φ = 5255244.

The previous prime is 10520119. The next prime is 10520143. The reversal of 10520138 is 83102501.

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

It is a super-2 number, since 2×10520138² = 221346607078088, 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, 1745 + ... + 4907.

It is an arithmetic number, because the mean of its divisors is an integer number (1974336).

Almost surely, 2^10520138 is an apocalyptic number.

10520138 is a deficient number, since it is larger than the sum of its proper divisors (5274550).

10520138 is a wasteful number, since it uses less digits than its factorization.

10520138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4828.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 10520138 is about 3243.4762215870. The cubic root of 10520138 is about 219.1158592696.

Adding to 10520138 its reverse (83102501), we get a palindrome (93622639).

The spelling of 10520138 in words is "ten million, five hundred twenty thousand, one hundred thirty-eight".