1150020545 has 16 divisors (see below), whose sum is σ = 1388228160. Its totient is φ = 914566464.

The previous prime is 1150020541. The next prime is 1150020551. The reversal of 1150020545 is 5450200511.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1150020545 - 2² = 1150020541 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1150020545.

It is not an unprimeable number, because it can be changed into a prime (1150020541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 706022 + ... + 707648.

It is an arithmetic number, because the mean of its divisors is an integer number (86764260).

Almost surely, 2^1150020545 is an apocalyptic number.

It is an amenable number.

1150020545 is a deficient number, since it is larger than the sum of its proper divisors (238207615).

1150020545 is a wasteful number, since it uses less digits than its factorization.

1150020545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2384.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 1150020545 is about 33911.9528337723. The cubic root of 1150020545 is about 1047.6957922017.

The spelling of 1150020545 in words is "one billion, one hundred fifty million, twenty thousand, five hundred forty-five".