Search a number
-
+
131946923 is a prime number
BaseRepresentation
bin1111101110101…
…01100110101011
3100012021121011002
413313111212223
5232234300143
621032025215
73161346623
oct767254653
9305247132
10131946923
1168531749
123823220b
132144aa04
1413749883
15b8b55b8
hex7dd59ab

131946923 has 2 divisors, whose sum is σ = 131946924. Its totient is φ = 131946922.

The previous prime is 131946901. The next prime is 131946931. The reversal of 131946923 is 329649131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131946923 - 28 = 131946667 is a prime.

It is not a weakly prime, because it can be changed into another prime (131946953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65973461 + 65973462.

It is an arithmetic number, because the mean of its divisors is an integer number (65973462).

Almost surely, 2131946923 is an apocalyptic number.

131946923 is a deficient number, since it is larger than the sum of its proper divisors (1).

131946923 is an equidigital number, since it uses as much as digits as its factorization.

131946923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34992, while the sum is 38.

The square root of 131946923 is about 11486.8151808933. The cubic root of 131946923 is about 509.0960830807.

The spelling of 131946923 in words is "one hundred thirty-one million, nine hundred forty-six thousand, nine hundred twenty-three".