135251120531 has 8 divisors (see below), whose sum is σ = 136394342400. Its totient is φ = 134109121608.

The previous prime is 135251120519. The next prime is 135251120603. The reversal of 135251120531 is 135021152531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135251120531 is a prime.

It is a super-2 number, since 2×135251120531² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 135251120494 and 135251120503.

It is not an unprimeable number, because it can be changed into a prime (135251120231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82931 + ... + 526668.

It is an arithmetic number, because the mean of its divisors is an integer number (17049292800).

Almost surely, 2^135251120531 is an apocalyptic number.

135251120531 is a deficient number, since it is larger than the sum of its proper divisors (1143221869).

135251120531 is a wasteful number, since it uses less digits than its factorization.

135251120531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611473.

The product of its (nonzero) digits is 4500, while the sum is 29.

The spelling of 135251120531 in words is "one hundred thirty-five billion, two hundred fifty-one million, one hundred twenty thousand, five hundred thirty-one".