11545138 has 16 divisors (see below), whose sum is σ = 18947520. Its totient is φ = 5232400.

The previous prime is 11545133. The next prime is 11545153. The reversal of 11545138 is 83154511.

It is a super-2 number, since 2×11545138² = 266580422878088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11545133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10683 + ... + 11713.

It is an arithmetic number, because the mean of its divisors is an integer number (1184220).

Almost surely, 2^11545138 is an apocalyptic number.

11545138 is a deficient number, since it is larger than the sum of its proper divisors (7402382).

11545138 is a wasteful number, since it uses less digits than its factorization.

11545138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1553.

The product of its digits is 2400, while the sum is 28.

The square root of 11545138 is about 3397.8137088428. The cubic root of 11545138 is about 226.0128037229.

Adding to 11545138 its reverse (83154511), we get a palindrome (94699649).

The spelling of 11545138 in words is "eleven million, five hundred forty-five thousand, one hundred thirty-eight".