1427240701 has 4 divisors (see below), whose sum is σ = 1465814812. Its totient is φ = 1388666592.

The previous prime is 1427240699. The next prime is 1427240719. The reversal of 1427240701 is 1070427241.

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 847683225 + 579557476 = 29115^2 + 24074^2 .

It is a cyclic number.

It is not a de Polignac number, because 1427240701 - 2¹ = 1427240699 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1427240701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1427240761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19287000 + ... + 19287073.

It is an arithmetic number, because the mean of its divisors is an integer number (366453703).

Almost surely, 2^1427240701 is an apocalyptic number.

It is an amenable number.

1427240701 is a deficient number, since it is larger than the sum of its proper divisors (38574111).

1427240701 is an equidigital number, since it uses as much as digits as its factorization.

1427240701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38574110.

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 1427240701 is about 37778.8393283859. The cubic root of 1427240701 is about 1125.8980683451.

Adding to 1427240701 its reverse (1070427241), we get a palindrome (2497667942).

The spelling of 1427240701 in words is "one billion, four hundred twenty-seven million, two hundred forty thousand, seven hundred one".