1427134621 has 12 divisors (see below), whose sum is σ = 1574806716. Its totient is φ = 1292318720.

The previous prime is 1427134607. The next prime is 1427134627. The reversal of 1427134621 is 1264317241.

It can be written as a sum of positive squares in 2 ways, for example, as 947962521 + 479172100 = 30789^2 + 21890^2 .

It is not a de Polignac number, because 1427134621 - 2¹⁹ = 1426610333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1427134627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8151 + ... + 54043.

It is an arithmetic number, because the mean of its divisors is an integer number (131233893).

Almost surely, 2^1427134621 is an apocalyptic number.

1427134621 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1427134621 is a deficient number, since it is larger than the sum of its proper divisors (147672095).

1427134621 is a wasteful number, since it uses less digits than its factorization.

1427134621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46172 (or 46161 counting only the distinct ones).

The product of its digits is 8064, while the sum is 31.

The square root of 1427134621 is about 37777.4353417487. The cubic root of 1427134621 is about 1125.8701734413.

The spelling of 1427134621 in words is "one billion, four hundred twenty-seven million, one hundred thirty-four thousand, six hundred twenty-one".