1405113253 has 2 divisors, whose sum is σ = 1405113254. Its totient is φ = 1405113252.

The previous prime is 1405113233. The next prime is 1405113277. The reversal of 1405113253 is 3523115041.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1066479649 + 338633604 = 32657^2 + 18402^2 .

It is a cyclic number.

It is not a de Polignac number, because 1405113253 - 2²¹ = 1403016101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1405113233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 702556626 + 702556627.

It is an arithmetic number, because the mean of its divisors is an integer number (702556627).

Almost surely, 2^1405113253 is an apocalyptic number.

It is an amenable number.

1405113253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1405113253 is an equidigital number, since it uses as much as digits as its factorization.

1405113253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 1405113253 is about 37484.8403091170. The cubic root of 1405113253 is about 1120.0492253556.

Adding to 1405113253 its reverse (3523115041), we get a palindrome (4928228294).

The spelling of 1405113253 in words is "one billion, four hundred five million, one hundred thirteen thousand, two hundred fifty-three".