131950069 has 2 divisors, whose sum is σ = 131950070. Its totient is φ = 131950068.

The previous prime is 131950061. The next prime is 131950081. The reversal of 131950069 is 960059131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 128527569 + 3422500 = 11337^2 + 1850^2 .

It is an emirp because it is prime and its reverse (960059131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131950069 - 2³ = 131950061 is a prime.

It is a super-2 number, since 2×131950069² = 34821641418209522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131950061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65975034 + 65975035.

It is an arithmetic number, because the mean of its divisors is an integer number (65975035).

Almost surely, 2^131950069 is an apocalyptic number.

It is an amenable number.

131950069 is a deficient number, since it is larger than the sum of its proper divisors (1).

131950069 is an equidigital number, since it uses as much as digits as its factorization.

131950069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7290, while the sum is 34.

The square root of 131950069 is about 11486.9521196878. The cubic root of 131950069 is about 509.1001291611.

The spelling of 131950069 in words is "one hundred thirty-one million, nine hundred fifty thousand, sixty-nine".