147703981 has 2 divisors, whose sum is σ = 147703982. Its totient is φ = 147703980.

The previous prime is 147703949. The next prime is 147703987. The reversal of 147703981 is 189307741.

147703981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 137686756 + 10017225 = 11734^2 + 3165^2 .

It is a cyclic number.

It is not a de Polignac number, because 147703981 - 2⁵ = 147703949 is a prime.

It is a super-2 number, since 2×147703981² = 43632932006496722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147703987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73851990 + 73851991.

It is an arithmetic number, because the mean of its divisors is an integer number (73851991).

Almost surely, 2^147703981 is an apocalyptic number.

It is an amenable number.

147703981 is a deficient number, since it is larger than the sum of its proper divisors (1).

147703981 is an equidigital number, since it uses as much as digits as its factorization.

147703981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 147703981 is about 12153.3526650057. The cubic root of 147703981 is about 528.6043510851.

The spelling of 147703981 in words is "one hundred forty-seven million, seven hundred three thousand, nine hundred eighty-one".