147781853 has 2 divisors, whose sum is σ = 147781854. Its totient is φ = 147781852.

The previous prime is 147781847. The next prime is 147781859. The reversal of 147781853 is 358187741.

It is a balanced prime because it is at equal distance from previous prime (147781847) and next prime (147781859).

It can be written as a sum of positive squares in only one way, i.e., 143952004 + 3829849 = 11998^2 + 1957^2 .

It is an emirp because it is prime and its reverse (358187741) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 147781853 - 2⁶ = 147781789 is a prime.

It is a super-2 number, since 2×147781853² = 43678952152227218, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147781859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73890926 + 73890927.

It is an arithmetic number, because the mean of its divisors is an integer number (73890927).

Almost surely, 2^147781853 is an apocalyptic number.

It is an amenable number.

147781853 is a deficient number, since it is larger than the sum of its proper divisors (1).

147781853 is an equidigital number, since it uses as much as digits as its factorization.

147781853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 188160, while the sum is 44.

The square root of 147781853 is about 12156.5559678718. Note that the first 3 decimals coincide. The cubic root of 147781853 is about 528.6972311051.

The spelling of 147781853 in words is "one hundred forty-seven million, seven hundred eighty-one thousand, eight hundred fifty-three".