1011226545 has 32 divisors (see below), whose sum is σ = 2054557440. Its totient is φ = 462274560.

The previous prime is 1011226523. The next prime is 1011226561. The reversal of 1011226545 is 5456221101.

1011226545 is a `hidden beast` number, since 1 + 0 + 1 + 1 + 2 + 2 + 654 + 5 = 666.

1011226545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1011226545 - 2⁸ = 1011226289 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

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, 534096 + ... + 535985.

It is an arithmetic number, because the mean of its divisors is an integer number (64204920).

Almost surely, 2^1011226545 is an apocalyptic number.

1011226545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1011226545 is an abundant number, since it is smaller than the sum of its proper divisors (1043330895).

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

1011226545 is a wasteful number, since it uses less digits than its factorization.

1011226545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070102 (or 1070096 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 1011226545 is about 31799.7884426925. The cubic root of 1011226545 is about 1003.7282644367.

Adding to 1011226545 its reverse (5456221101), we get a palindrome (6467447646).

The spelling of 1011226545 in words is "one billion, eleven million, two hundred twenty-six thousand, five hundred forty-five".