1285300131 has 8 divisors (see below), whose sum is σ = 1714535184. Its totient is φ = 856465920.

The previous prime is 1285300129. The next prime is 1285300169. The reversal of 1285300131 is 1310035821.

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

It is not a de Polignac number, because 1285300131 - 2¹ = 1285300129 is a prime.

It is a super-2 number, since 2×1285300131² = 3303992853497234322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1285300171) 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, 92646 + ... + 105611.

It is an arithmetic number, because the mean of its divisors is an integer number (214316898).

Almost surely, 2^1285300131 is an apocalyptic number.

1285300131 is a deficient number, since it is larger than the sum of its proper divisors (429235053).

1285300131 is a wasteful number, since it uses less digits than its factorization.

1285300131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200421.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 1285300131 is about 35851.0827033159. The cubic root of 1285300131 is about 1087.2636046881.

Adding to 1285300131 its reverse (1310035821), we get a palindrome (2595335952).

The spelling of 1285300131 in words is "one billion, two hundred eighty-five million, three hundred thousand, one hundred thirty-one".