1434557021 has 2 divisors, whose sum is σ = 1434557022. Its totient is φ = 1434557020.

The previous prime is 1434557017. The next prime is 1434557029. The reversal of 1434557021 is 1207554341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 900300025 + 534256996 = 30005^2 + 23114^2 .

It is a cyclic number.

It is not a de Polignac number, because 1434557021 - 2² = 1434557017 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1434557029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 717278510 + 717278511.

It is an arithmetic number, because the mean of its divisors is an integer number (717278511).

Almost surely, 2^1434557021 is an apocalyptic number.

It is an amenable number.

1434557021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1434557021 is an equidigital number, since it uses as much as digits as its factorization.

1434557021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 1434557021 is about 37875.5464779058. The cubic root of 1434557021 is about 1127.8186495358.

The spelling of 1434557021 in words is "one billion, four hundred thirty-four million, five hundred fifty-seven thousand, twenty-one".