1427258531 has 2 divisors, whose sum is σ = 1427258532. Its totient is φ = 1427258530.

The previous prime is 1427258513. The next prime is 1427258561. The reversal of 1427258531 is 1358527241.

Together with previous prime (1427258513) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (1358527241) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1427258531 is a prime.

It is a super-2 number, since 2×1427258531² = 4074133828624555922, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1427258501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 713629265 + 713629266.

It is an arithmetic number, because the mean of its divisors is an integer number (713629266).

Almost surely, 2^1427258531 is an apocalyptic number.

1427258531 is a deficient number, since it is larger than the sum of its proper divisors (1).

1427258531 is an equidigital number, since it uses as much as digits as its factorization.

1427258531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 67200, while the sum is 38.

The square root of 1427258531 is about 37779.0753063121. The cubic root of 1427258531 is about 1125.9027568042.

The spelling of 1427258531 in words is "one billion, four hundred twenty-seven million, two hundred fifty-eight thousand, five hundred thirty-one".