Search a number
-
+
131340953 is a prime number
BaseRepresentation
bin1111101010000…
…01101010011001
3100011010210220202
413311001222121
5232110402303
621011031545
73153244142
oct765015231
9304123822
10131340953
1168158447
1237b9b5b5
1321297c53
141362cac9
15b7e5c88
hex7d41a99

131340953 has 2 divisors, whose sum is σ = 131340954. Its totient is φ = 131340952.

The previous prime is 131340947. The next prime is 131341003. The reversal of 131340953 is 359043131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131171209 + 169744 = 11453^2 + 412^2 .

It is an emirp because it is prime and its reverse (359043131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131340953 - 28 = 131340697 is a prime.

It is not a weakly prime, because it can be changed into another prime (131346953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65670476 + 65670477.

It is an arithmetic number, because the mean of its divisors is an integer number (65670477).

Almost surely, 2131340953 is an apocalyptic number.

It is an amenable number.

131340953 is a deficient number, since it is larger than the sum of its proper divisors (1).

131340953 is an equidigital number, since it uses as much as digits as its factorization.

131340953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860, while the sum is 29.

The square root of 131340953 is about 11460.4080642881. The cubic root of 131340953 is about 508.3155408864.

The spelling of 131340953 in words is "one hundred thirty-one million, three hundred forty thousand, nine hundred fifty-three".