147854221849 has 2 divisors, whose sum is σ = 147854221850. Its totient is φ = 147854221848.

The previous prime is 147854221783. The next prime is 147854221901. The reversal of 147854221849 is 948122458741.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 145719319824 + 2134902025 = 381732^2 + 46205^2 .

It is a cyclic number.

It is not a de Polignac number, because 147854221849 - 2¹¹ = 147854219801 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 147854221849.

It is not a weakly prime, because it can be changed into another prime (147854221349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73927110924 + 73927110925.

It is an arithmetic number, because the mean of its divisors is an integer number (73927110925).

Almost surely, 2^147854221849 is an apocalyptic number.

It is an amenable number.

147854221849 is a deficient number, since it is larger than the sum of its proper divisors (1).

147854221849 is an equidigital number, since it uses as much as digits as its factorization.

147854221849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5160960, while the sum is 55.

The spelling of 147854221849 in words is "one hundred forty-seven billion, eight hundred fifty-four million, two hundred twenty-one thousand, eight hundred forty-nine".