147861113 has 2 divisors, whose sum is σ = 147861114. Its totient is φ = 147861112.

The previous prime is 147861083. The next prime is 147861127. The reversal of 147861113 is 311168741.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109767529 + 38093584 = 10477^2 + 6172^2 .

It is a cyclic number.

It is not a de Polignac number, because 147861113 - 2⁸ = 147860857 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 147861113.

It is not a weakly prime, because it can be changed into another prime (147861143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73930556 + 73930557.

It is an arithmetic number, because the mean of its divisors is an integer number (73930557).

Almost surely, 2^147861113 is an apocalyptic number.

It is an amenable number.

147861113 is a deficient number, since it is larger than the sum of its proper divisors (1).

147861113 is an equidigital number, since it uses as much as digits as its factorization.

147861113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 32.

The square root of 147861113 is about 12159.8155002451. The cubic root of 147861113 is about 528.7917331303.

Subtracting 147861113 from its reverse (311168741), we obtain a triangular number (163307628 = T₁₈₀₇₂).

The spelling of 147861113 in words is "one hundred forty-seven million, eight hundred sixty-one thousand, one hundred thirteen".