135286157 has 12 divisors (see below), whose sum is σ = 139946940. Its totient is φ = 130732992.

The previous prime is 135286147. The next prime is 135286211. The reversal of 135286157 is 751682531.

It can be written as a sum of positive squares in 2 ways, for example, as 112063396 + 23222761 = 10586^2 + 4819^2 .

It is not a de Polignac number, because 135286157 - 2⁸ = 135285901 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 135286157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135286147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 330569 + ... + 330977.

It is an arithmetic number, because the mean of its divisors is an integer number (11662245).

Almost surely, 2^135286157 is an apocalyptic number.

It is an amenable number.

135286157 is a deficient number, since it is larger than the sum of its proper divisors (4660783).

135286157 is an frugal number, since it uses more digits than its factorization.

135286157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620 (or 541 counting only the distinct ones).

The product of its digits is 50400, while the sum is 38.

The square root of 135286157 is about 11631.2577565799. The cubic root of 135286157 is about 513.3549886387.

The spelling of 135286157 in words is "one hundred thirty-five million, two hundred eighty-six thousand, one hundred fifty-seven".