135551424461 has 2 divisors, whose sum is σ = 135551424462. Its totient is φ = 135551424460.

The previous prime is 135551424427. The next prime is 135551424469. The reversal of 135551424461 is 164424155531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95122279561 + 40429144900 = 308419^2 + 201070^2 .

It is a cyclic number.

It is not a de Polignac number, because 135551424461 - 2²⁶ = 135484315597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135551424469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67775712230 + 67775712231.

It is an arithmetic number, because the mean of its divisors is an integer number (67775712231).

Almost surely, 2^135551424461 is an apocalyptic number.

It is an amenable number.

135551424461 is a deficient number, since it is larger than the sum of its proper divisors (1).

135551424461 is an equidigital number, since it uses as much as digits as its factorization.

135551424461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288000, while the sum is 41.

Adding to 135551424461 its reverse (164424155531), we get a palindrome (299975579992).

The spelling of 135551424461 in words is "one hundred thirty-five billion, five hundred fifty-one million, four hundred twenty-four thousand, four hundred sixty-one".