11290545 has 48 divisors (see below), whose sum is σ = 22718592. Its totient is φ = 5080320.

The previous prime is 11290523. The next prime is 11290549. The reversal of 11290545 is 54509211.

11290545 is a `hidden beast` number, since 112 + 9 + 0 + 545 = 666.

11290545 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11290545 - 2⁸ = 11290289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11290549) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22750 + ... + 23240.

It is an arithmetic number, because the mean of its divisors is an integer number (473304).

Almost surely, 2^11290545 is an apocalyptic number.

11290545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11290545 is an abundant number, since it is smaller than the sum of its proper divisors (11428047).

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

11290545 is a wasteful number, since it uses less digits than its factorization.

11290545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582 (or 579 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 11290545 is about 3360.1406220574. The cubic root of 11290545 is about 224.3390976403.

Adding to 11290545 its reverse (54509211), we get a palindrome (65799756).

The spelling of 11290545 in words is "eleven million, two hundred ninety thousand, five hundred forty-five".