11551245 has 32 divisors (see below), whose sum is σ = 19813248. Its totient is φ = 5726208.

The previous prime is 11551229. The next prime is 11551247. The reversal of 11551245 is 54215511.

11551245 = 141² + 142² + ... + 334².

11551245 is nontrivially palindromic in base 2.

It is not a de Polignac number, because 11551245 - 2⁴ = 11551229 is a prime.

It is a super-2 number, since 2×11551245² = 266862522100050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11551247) 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, 24502 + ... + 24968.

It is an arithmetic number, because the mean of its divisors is an integer number (619164).

Almost surely, 2^11551245 is an apocalyptic number.

11551245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11551245 is a deficient number, since it is larger than the sum of its proper divisors (8262003).

11551245 is a wasteful number, since it uses less digits than its factorization.

11551245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589.

The product of its digits is 1000, while the sum is 24.

The square root of 11551245 is about 3398.7122561347. The cubic root of 11551245 is about 226.0526478227.

Subtracting from 11551245 its sum of digits (24), we obtain a triangular number (11551221 = T₄₈₀₆).

Adding to 11551245 its reverse (54215511), we get a palindrome (65766756).

It can be divided in two parts, 115 and 51245, that added together give a triangular number (51360 = T₃₂₀).

The spelling of 11551245 in words is "eleven million, five hundred fifty-one thousand, two hundred forty-five".