1438536499 has 2 divisors, whose sum is σ = 1438536500. Its totient is φ = 1438536498.

The previous prime is 1438536461. The next prime is 1438536527. The reversal of 1438536499 is 9946358341.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1438536499 - 2¹¹ = 1438534451 is a prime.

It is not a weakly prime, because it can be changed into another prime (1438536439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 719268249 + 719268250.

It is an arithmetic number, because the mean of its divisors is an integer number (719268250).

Almost surely, 2^1438536499 is an apocalyptic number.

1438536499 is a deficient number, since it is larger than the sum of its proper divisors (1).

1438536499 is an equidigital number, since it uses as much as digits as its factorization.

1438536499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2799360, while the sum is 52.

The square root of 1438536499 is about 37928.0437011982. The cubic root of 1438536499 is about 1128.8605474367.

The spelling of 1438536499 in words is "one billion, four hundred thirty-eight million, five hundred thirty-six thousand, four hundred ninety-nine".