1345494487 has 2 divisors, whose sum is σ = 1345494488. Its totient is φ = 1345494486.

The previous prime is 1345494473. The next prime is 1345494533. The reversal of 1345494487 is 7844945431.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1345494487 - 2¹⁹ = 1344970199 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1345494487.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1345494187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672747243 + 672747244.

It is an arithmetic number, because the mean of its divisors is an integer number (672747244).

Almost surely, 2^1345494487 is an apocalyptic number.

1345494487 is a deficient number, since it is larger than the sum of its proper divisors (1).

1345494487 is an equidigital number, since it uses as much as digits as its factorization.

1345494487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1935360, while the sum is 49.

The square root of 1345494487 is about 36680.9826340571. The cubic root of 1345494487 is about 1103.9785643002.

The spelling of 1345494487 in words is "one billion, three hundred forty-five million, four hundred ninety-four thousand, four hundred eighty-seven".