1011550045 has 16 divisors (see below), whose sum is σ = 1327575168. Its totient is φ = 733803840.

The previous prime is 1011550037. The next prime is 1011550061. The reversal of 1011550045 is 5400551101.

It is a happy number.

It is not a de Polignac number, because 1011550045 - 2³ = 1011550037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011549998 and 1011550025.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1329 + ... + 44998.

It is an arithmetic number, because the mean of its divisors is an integer number (82973448).

Almost surely, 2^1011550045 is an apocalyptic number.

It is an amenable number.

1011550045 is a deficient number, since it is larger than the sum of its proper divisors (316025123).

1011550045 is a wasteful number, since it uses less digits than its factorization.

1011550045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46740.

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 1011550045 is about 31804.8745477796. The cubic root of 1011550045 is about 1003.8352867704.

The spelling of 1011550045 in words is "one billion, eleven million, five hundred fifty thousand, forty-five".