135232331 has 16 divisors (see below), whose sum is σ = 156520224. Its totient is φ = 115720704.

The previous prime is 135232319. The next prime is 135232343. The reversal of 135232331 is 133232531.

It is an interprime number because it is at equal distance from previous prime (135232319) and next prime (135232343).

It is a cyclic number.

It is not a de Polignac number, because 135232331 - 2¹⁰ = 135231307 is a prime.

It is a super-2 number, since 2×135232331² = 36575566695387122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 135232297 and 135232306.

It is not an unprimeable number, because it can be changed into a prime (135232381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10241 + ... + 19373.

It is an arithmetic number, because the mean of its divisors is an integer number (9782514).

Almost surely, 2^135232331 is an apocalyptic number.

135232331 is a deficient number, since it is larger than the sum of its proper divisors (21287893).

135232331 is a wasteful number, since it uses less digits than its factorization.

135232331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9230.

The product of its digits is 1620, while the sum is 23.

The square root of 135232331 is about 11628.9436751581. The cubic root of 135232331 is about 513.2868971413.

Adding to 135232331 its reverse (133232531), we get a palindrome (268464862).

The spelling of 135232331 in words is "one hundred thirty-five million, two hundred thirty-two thousand, three hundred thirty-one".