1029422545 has 4 divisors (see below), whose sum is σ = 1235307060. Its totient is φ = 823538032.

The previous prime is 1029422543. The next prime is 1029422557. The reversal of 1029422545 is 5452249201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 302203456 + 727219089 = 17384^2 + 26967^2 .

It is a cyclic number.

It is not a de Polignac number, because 1029422545 - 2¹ = 1029422543 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1029422545.

It is not an unprimeable number, because it can be changed into a prime (1029422543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102942250 + ... + 102942259.

It is an arithmetic number, because the mean of its divisors is an integer number (308826765).

Almost surely, 2^1029422545 is an apocalyptic number.

It is an amenable number.

1029422545 is a deficient number, since it is larger than the sum of its proper divisors (205884515).

1029422545 is an equidigital number, since it uses as much as digits as its factorization.

1029422545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205884514.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 1029422545 is about 32084.6153942976. The cubic root of 1029422545 is about 1009.7128697249.

The spelling of 1029422545 in words is "one billion, twenty-nine million, four hundred twenty-two thousand, five hundred forty-five".