1021335545 has 16 divisors (see below), whose sum is σ = 1232763840. Its totient is φ = 812311104.

The previous prime is 1021335529. The next prime is 1021335547. The reversal of 1021335545 is 5455331201.

It is a cyclic number.

It is not a de Polignac number, because 1021335545 - 2⁴ = 1021335529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1021335547) 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, 780782 + ... + 782088.

It is an arithmetic number, because the mean of its divisors is an integer number (77047740).

Almost surely, 2^1021335545 is an apocalyptic number.

It is an amenable number.

1021335545 is a deficient number, since it is larger than the sum of its proper divisors (211428295).

1021335545 is a wasteful number, since it uses less digits than its factorization.

1021335545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2104.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 1021335545 is about 31958.3407735758. The cubic root of 1021335545 is about 1007.0618610603.

Adding to 1021335545 its reverse (5455331201), we get a palindrome (6476666746).

The spelling of 1021335545 in words is "one billion, twenty-one million, three hundred thirty-five thousand, five hundred forty-five".