1435412021 has 2 divisors, whose sum is σ = 1435412022. Its totient is φ = 1435412020.

The previous prime is 1435411997. The next prime is 1435412047. The reversal of 1435412021 is 1202145341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1433758225 + 1653796 = 37865^2 + 1286^2 .

It is a cyclic number.

It is not a de Polignac number, because 1435412021 - 2²² = 1431217717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1435412081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 717706010 + 717706011.

It is an arithmetic number, because the mean of its divisors is an integer number (717706011).

Almost surely, 2^1435412021 is an apocalyptic number.

It is an amenable number.

1435412021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1435412021 is an equidigital number, since it uses as much as digits as its factorization.

1435412021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1435412021 is about 37886.8317625003. The cubic root of 1435412021 is about 1128.0426660609.

Adding to 1435412021 its reverse (1202145341), we get a palindrome (2637557362).

The spelling of 1435412021 in words is "one billion, four hundred thirty-five million, four hundred twelve thousand, twenty-one".