1105902138 has 64 divisors (see below), whose sum is σ = 2454105600. Its totient is φ = 329448000.

The previous prime is 1105902107. The next prime is 1105902167. The reversal of 1105902138 is 8312095011.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1051713 + ... + 1052763.

It is an arithmetic number, because the mean of its divisors is an integer number (38345400).

Almost surely, 2^1105902138 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1105902138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1227052800).

1105902138 is an abundant number, since it is smaller than the sum of its proper divisors (1348203462).

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

1105902138 is a wasteful number, since it uses less digits than its factorization.

1105902138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1323.

The product of its (nonzero) digits is 2160, while the sum is 30.

The square root of 1105902138 is about 33255.1069461519. The cubic root of 1105902138 is about 1034.1230836922.

Adding to 1105902138 its reverse (8312095011), we get a palindrome (9417997149).

The spelling of 1105902138 in words is "one billion, one hundred five million, nine hundred two thousand, one hundred thirty-eight".