1423315513 has 2 divisors, whose sum is σ = 1423315514. Its totient is φ = 1423315512.

The previous prime is 1423315507. The next prime is 1423315541. The reversal of 1423315513 is 3155133241.

It is a happy number.

It is an a-pointer prime, because the next prime (1423315541) can be obtained adding 1423315513 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 851005584 + 572309929 = 29172^2 + 23923^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1423315513 is a prime.

It is not a weakly prime, because it can be changed into another prime (1423315613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711657756 + 711657757.

It is an arithmetic number, because the mean of its divisors is an integer number (711657757).

Almost surely, 2^1423315513 is an apocalyptic number.

It is an amenable number.

1423315513 is a deficient number, since it is larger than the sum of its proper divisors (1).

1423315513 is an equidigital number, since it uses as much as digits as its factorization.

1423315513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5400, while the sum is 28.

The square root of 1423315513 is about 37726.8540034814. The cubic root of 1423315513 is about 1124.8649748728.

Adding to 1423315513 its reverse (3155133241), we get a palindrome (4578448754).

It can be divided in two parts, 1423315 and 513, that added together give a triangular number (1423828 = T₁₆₈₇).

The spelling of 1423315513 in words is "one billion, four hundred twenty-three million, three hundred fifteen thousand, five hundred thirteen".