1402540453 has 2 divisors, whose sum is σ = 1402540454. Its totient is φ = 1402540452.

The previous prime is 1402540429. The next prime is 1402540481. The reversal of 1402540453 is 3540452041.

It is an a-pointer prime, because the next prime (1402540481) can be obtained adding 1402540453 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., 943595524 + 458944929 = 30718^2 + 21423^2 .

It is a cyclic number.

It is not a de Polignac number, because 1402540453 - 2¹⁷ = 1402409381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1402543453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 701270226 + 701270227.

It is an arithmetic number, because the mean of its divisors is an integer number (701270227).

Almost surely, 2^1402540453 is an apocalyptic number.

It is an amenable number.

1402540453 is a deficient number, since it is larger than the sum of its proper divisors (1).

1402540453 is an equidigital number, since it uses as much as digits as its factorization.

1402540453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 1402540453 is about 37450.5067121928. The cubic root of 1402540453 is about 1119.3651943157.

Adding to 1402540453 its reverse (3540452041), we get a palindrome (4942992494).

The spelling of 1402540453 in words is "one billion, four hundred two million, five hundred forty thousand, four hundred fifty-three".