135504451 has 2 divisors, whose sum is σ = 135504452. Its totient is φ = 135504450.

The previous prime is 135504407. The next prime is 135504461. The reversal of 135504451 is 154405531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 135504451 - 2⁹ = 135503939 is a prime.

It is a super-2 number, since 2×135504451² = 36722912481622802, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (135504401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67752225 + 67752226.

It is an arithmetic number, because the mean of its divisors is an integer number (67752226).

Almost surely, 2^135504451 is an apocalyptic number.

135504451 is a deficient number, since it is larger than the sum of its proper divisors (1).

135504451 is an equidigital number, since it uses as much as digits as its factorization.

135504451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 135504451 is about 11640.6379120734. The cubic root of 135504451 is about 513.6309520652.

Adding to 135504451 its reverse (154405531), we get a palindrome (289909982).

The spelling of 135504451 in words is "one hundred thirty-five million, five hundred four thousand, four hundred fifty-one".