131285029 has 8 divisors (see below), whose sum is σ = 132387552. Its totient is φ = 130186800.

The previous prime is 131285023. The next prime is 131285051. The reversal of 131285029 is 920582131.

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

It is a cyclic number.

It is not a de Polignac number, because 131285029 - 2¹³ = 131276837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131285023) 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, 89754 + ... + 91204.

It is an arithmetic number, because the mean of its divisors is an integer number (16548444).

Almost surely, 2^131285029 is an apocalyptic number.

It is an amenable number.

131285029 is a deficient number, since it is larger than the sum of its proper divisors (1102523).

131285029 is a wasteful number, since it uses less digits than its factorization.

131285029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2147.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 131285029 is about 11457.9679262948. The cubic root of 131285029 is about 508.2433849866.

The spelling of 131285029 in words is "one hundred thirty-one million, two hundred eighty-five thousand, twenty-nine".