135453121451 has 2 divisors, whose sum is σ = 135453121452. Its totient is φ = 135453121450.

The previous prime is 135453121423. The next prime is 135453121537. The reversal of 135453121451 is 154121354531.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 135453121451 - 2³⁰ = 134379379627 is a prime.

It is a super-2 number, since 2×135453121451² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (135453121411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67726560725 + 67726560726.

It is an arithmetic number, because the mean of its divisors is an integer number (67726560726).

Almost surely, 2^135453121451 is an apocalyptic number.

135453121451 is a deficient number, since it is larger than the sum of its proper divisors (1).

135453121451 is an equidigital number, since it uses as much as digits as its factorization.

135453121451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36000, while the sum is 35.

Adding to 135453121451 its reverse (154121354531), we get a palindrome (289574475982).

The spelling of 135453121451 in words is "one hundred thirty-five billion, four hundred fifty-three million, one hundred twenty-one thousand, four hundred fifty-one".