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131013079 is a prime number
BaseRepresentation
bin1111100111100…
…01100111010111
3100010112011011021
413303301213113
5232014404304
621000022011
73150410221
oct763614727
9303464137
10131013079
1167a5407a
1237a61907
13211b1942
1413585411
15b77da54
hex7cf19d7

131013079 has 2 divisors, whose sum is σ = 131013080. Its totient is φ = 131013078.

The previous prime is 131013031. The next prime is 131013107. The reversal of 131013079 is 970310131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131013079 - 27 = 131012951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131013019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65506539 + 65506540.

It is an arithmetic number, because the mean of its divisors is an integer number (65506540).

Almost surely, 2131013079 is an apocalyptic number.

131013079 is a deficient number, since it is larger than the sum of its proper divisors (1).

131013079 is an equidigital number, since it uses as much as digits as its factorization.

131013079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 567, while the sum is 25.

The square root of 131013079 is about 11446.0944867671. The cubic root of 131013079 is about 507.8922092894.

The spelling of 131013079 in words is "one hundred thirty-one million, thirteen thousand, seventy-nine".