101138862 has 64 divisors (see below), whose sum is σ = 236390400. Its totient is φ = 28522080.

The previous prime is 101138837. The next prime is 101138867. The reversal of 101138862 is 268831101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101138867) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73303 + ... + 74669.

It is an arithmetic number, because the mean of its divisors is an integer number (3693600).

Almost surely, 2^101138862 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 101138862, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118195200).

101138862 is an abundant number, since it is smaller than the sum of its proper divisors (135251538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101138862 is a wasteful number, since it uses less digits than its factorization.

101138862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1461.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 101138862 is about 10056.7818908436. The cubic root of 101138862 is about 465.9142793323.

Adding to 101138862 its reverse (268831101), we get a palindrome (369969963).

The spelling of 101138862 in words is "one hundred one million, one hundred thirty-eight thousand, eight hundred sixty-two".