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131063071 = 3110341047
BaseRepresentation
bin1111100111111…
…01110100011111
3100010121200201211
413303331310133
5232023004241
621001045251
73151006036
oct763756437
9303550654
10131063071
1167a88697
1237a86827
13211cb619
141359971d
15b78d781
hex7cfdd1f

131063071 has 8 divisors (see below), whose sum is σ = 136607744. Its totient is φ = 125600760.

The previous prime is 131063069. The next prime is 131063077. The reversal of 131063071 is 170360131.

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 131063071 - 21 = 131063069 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 (131063077) 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, 17331 + ... + 23716.

It is an arithmetic number, because the mean of its divisors is an integer number (17075968).

Almost surely, 2131063071 is an apocalyptic number.

131063071 is a deficient number, since it is larger than the sum of its proper divisors (5544673).

131063071 is a wasteful number, since it uses less digits than its factorization.

131063071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41181.

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 131063071 is about 11448.2780801307. The cubic root of 131063071 is about 507.9568016153.

The spelling of 131063071 in words is "one hundred thirty-one million, sixty-three thousand, seventy-one".

Divisors: 1 31 103 3193 41047 1272457 4227841 131063071