1427018249 has 4 divisors (see below), whose sum is σ = 1430577300. Its totient is φ = 1423459200.

The previous prime is 1427018227. The next prime is 1427018273. The reversal of 1427018249 is 9428107241.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 901921024 + 525097225 = 30032^2 + 22915^2 .

It is a cyclic number.

It is not a de Polignac number, because 1427018249 - 2¹⁶ = 1426952713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1427018209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1778924 + ... + 1779725.

It is an arithmetic number, because the mean of its divisors is an integer number (357644325).

Almost surely, 2^1427018249 is an apocalyptic number.

It is an amenable number.

1427018249 is a deficient number, since it is larger than the sum of its proper divisors (3559051).

1427018249 is an equidigital number, since it uses as much as digits as its factorization.

1427018249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3559050.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 1427018249 is about 37775.8950787404. The cubic root of 1427018249 is about 1125.8395705528.

The spelling of 1427018249 in words is "one billion, four hundred twenty-seven million, eighteen thousand, two hundred forty-nine".