1102138 has 4 divisors (see below), whose sum is σ = 1653210. Its totient is φ = 551068.

The previous prime is 1102117. The next prime is 1102147. The reversal of 1102138 is 8312011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8312011 = 1511 ⋅5501.

It can be written as a sum of positive squares in only one way, i.e., 1096209 + 5929 = 1047^2 + 77^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275533 + ... + 275536.

2^1102138 is an apocalyptic number.

1102138 is a deficient number, since it is larger than the sum of its proper divisors (551072).

1102138 is an equidigital number, since it uses as much as digits as its factorization.

1102138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551071.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1102138 is about 1049.8276048952. The cubic root of 1102138 is about 103.2948475017.

Adding to 1102138 its reverse (8312011), we get a palindrome (9414149).

It can be divided in two parts, 1102 and 138, that multiplied together give a triangular number (152076 = T₅₅₁).

The spelling of 1102138 in words is "one million, one hundred two thousand, one hundred thirty-eight".