1045419421 has 2 divisors, whose sum is σ = 1045419422. Its totient is φ = 1045419420.

The previous prime is 1045419413. The next prime is 1045419439. The reversal of 1045419421 is 1249145401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1008380025 + 37039396 = 31755^2 + 6086^2 .

It is a cyclic number.

It is not a de Polignac number, because 1045419421 - 2³ = 1045419413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1045419461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 522709710 + 522709711.

It is an arithmetic number, because the mean of its divisors is an integer number (522709711).

Almost surely, 2^1045419421 is an apocalyptic number.

It is an amenable number.

1045419421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1045419421 is an equidigital number, since it uses as much as digits as its factorization.

1045419421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 1045419421 is about 32332.9463705367. The cubic root of 1045419421 is about 1014.9162075019.

The spelling of 1045419421 in words is "one billion, forty-five million, four hundred nineteen thousand, four hundred twenty-one".