954135661 has 2 divisors, whose sum is σ = 954135662. Its totient is φ = 954135660.

The previous prime is 954135647. The next prime is 954135691. The reversal of 954135661 is 166531459.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 658948900 + 295186761 = 25670^2 + 17181^2 .

It is a cyclic number.

It is not a de Polignac number, because 954135661 - 2¹⁵ = 954102893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (954135601) 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, 477067830 + 477067831.

It is an arithmetic number, because the mean of its divisors is an integer number (477067831).

Almost surely, 2^954135661 is an apocalyptic number.

It is an amenable number.

954135661 is a deficient number, since it is larger than the sum of its proper divisors (1).

954135661 is an equidigital number, since it uses as much as digits as its factorization.

954135661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 97200, while the sum is 40.

The square root of 954135661 is about 30889.0864384170. The cubic root of 954135661 is about 984.4720167634.

The spelling of 954135661 in words is "nine hundred fifty-four million, one hundred thirty-five thousand, six hundred sixty-one".