11345140 has 12 divisors (see below), whose sum is σ = 23824836. Its totient is φ = 4538048.

The previous prime is 11345093. The next prime is 11345143. The reversal of 11345140 is 4154311.

It can be written as a sum of positive squares in 2 ways, for example, as 1245456 + 10099684 = 1116^2 + 3178^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11345143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 283609 + ... + 283648.

It is an arithmetic number, because the mean of its divisors is an integer number (1985403).

Almost surely, 2^11345140 is an apocalyptic number.

11345140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11345140 is an abundant number, since it is smaller than the sum of its proper divisors (12479696).

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

11345140 is a wasteful number, since it uses less digits than its factorization.

11345140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567266 (or 567264 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 11345140 is about 3368.2547409601. The cubic root of 11345140 is about 224.7001107610.

Adding to 11345140 its reverse (4154311), we get a palindrome (15499451).

The spelling of 11345140 in words is "eleven million, three hundred forty-five thousand, one hundred forty".