1435045921 has 2 divisors, whose sum is σ = 1435045922. Its totient is φ = 1435045920.

The previous prime is 1435045897. The next prime is 1435045949. The reversal of 1435045921 is 1295405341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1329696225 + 105349696 = 36465^2 + 10264^2 .

It is an emirp because it is prime and its reverse (1295405341) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1435045921 - 2⁷ = 1435045793 is a prime.

It is not a weakly prime, because it can be changed into another prime (1435045951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 717522960 + 717522961.

It is an arithmetic number, because the mean of its divisors is an integer number (717522961).

Almost surely, 2^1435045921 is an apocalyptic number.

It is an amenable number.

1435045921 is a deficient number, since it is larger than the sum of its proper divisors (1).

1435045921 is an equidigital number, since it uses as much as digits as its factorization.

1435045921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 1435045921 is about 37881.9999604034. Note that the first 4 decimals coincide. The cubic root of 1435045921 is about 1127.9467559601.

The spelling of 1435045921 in words is "one billion, four hundred thirty-five million, forty-five thousand, nine hundred twenty-one".