135523051 has 2 divisors, whose sum is σ = 135523052. Its totient is φ = 135523050.

The previous prime is 135523019. The next prime is 135523123. The reversal of 135523051 is 150325531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 135523051 - 2⁵ = 135523019 is a prime.

It is not a weakly prime, because it can be changed into another prime (135523651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67761525 + 67761526.

It is an arithmetic number, because the mean of its divisors is an integer number (67761526).

Almost surely, 2^135523051 is an apocalyptic number.

135523051 is a deficient number, since it is larger than the sum of its proper divisors (1).

135523051 is an equidigital number, since it uses as much as digits as its factorization.

135523051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 135523051 is about 11641.4368099475. The cubic root of 135523051 is about 513.6544521509.

Adding to 135523051 its reverse (150325531), we get a palindrome (285848582).

The spelling of 135523051 in words is "one hundred thirty-five million, five hundred twenty-three thousand, fifty-one".