135042331 has 2 divisors, whose sum is σ = 135042332. Its totient is φ = 135042330.

The previous prime is 135042311. The next prime is 135042461. The reversal of 135042331 is 133240531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 135042331 - 2¹³ = 135034139 is a prime.

It is a super-2 number, since 2×135042331² = 36472862323827122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (135042311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67521165 + 67521166.

It is an arithmetic number, because the mean of its divisors is an integer number (67521166).

Almost surely, 2^135042331 is an apocalyptic number.

135042331 is a deficient number, since it is larger than the sum of its proper divisors (1).

135042331 is an equidigital number, since it uses as much as digits as its factorization.

135042331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 135042331 is about 11620.7715320455. The cubic root of 135042331 is about 513.0463969122.

Adding to 135042331 its reverse (133240531), we get a palindrome (268282862).

It can be divided in two parts, 1350 and 42331, that added together give a square (43681 = 209²).

The spelling of 135042331 in words is "one hundred thirty-five million, forty-two thousand, three hundred thirty-one".