131057029 has 8 divisors (see below), whose sum is σ = 139042008. Its totient is φ = 123102720.

The previous prime is 131057023. The next prime is 131057081. The reversal of 131057029 is 920750131.

It can be written as a sum of positive squares in 4 ways, for example, as 16524225 + 114532804 = 4065^2 + 10702^2 .

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 131057029 - 2³ = 131057021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131056988 and 131057006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131057021) 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, 1459 + ... + 16255.

It is an arithmetic number, because the mean of its divisors is an integer number (17380251).

Almost surely, 2^131057029 is an apocalyptic number.

It is an amenable number.

131057029 is a deficient number, since it is larger than the sum of its proper divisors (7984979).

131057029 is a wasteful number, since it uses less digits than its factorization.

131057029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15335.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 131057029 is about 11448.0141946103. The cubic root of 131057029 is about 507.9489959023.

The spelling of 131057029 in words is "one hundred thirty-one million, fifty-seven thousand, twenty-nine".