1302140453 has 2 divisors, whose sum is σ = 1302140454. Its totient is φ = 1302140452.

The previous prime is 1302140431. The next prime is 1302140473. The reversal of 1302140453 is 3540412031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1111755649 + 190384804 = 33343^2 + 13798^2 .

It is a cyclic number.

It is not a de Polignac number, because 1302140453 - 2²² = 1297946149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1302140473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651070226 + 651070227.

It is an arithmetic number, because the mean of its divisors is an integer number (651070227).

Almost surely, 2^1302140453 is an apocalyptic number.

It is an amenable number.

1302140453 is a deficient number, since it is larger than the sum of its proper divisors (1).

1302140453 is an equidigital number, since it uses as much as digits as its factorization.

1302140453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1302140453 is about 36085.1832889900. The cubic root of 1302140453 is about 1091.9915482469.

Adding to 1302140453 its reverse (3540412031), we get a palindrome (4842552484).

The spelling of 1302140453 in words is "one billion, three hundred two million, one hundred forty thousand, four hundred fifty-three".