147681437 has 2 divisors, whose sum is σ = 147681438. Its totient is φ = 147681436.

The previous prime is 147681421. The next prime is 147681449. The reversal of 147681437 is 734186741.

147681437 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., 144336196 + 3345241 = 12014^2 + 1829^2 .

It is a cyclic number.

It is not a de Polignac number, because 147681437 - 2⁴ = 147681421 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 147681394 and 147681403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147681407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73840718 + 73840719.

It is an arithmetic number, because the mean of its divisors is an integer number (73840719).

Almost surely, 2^147681437 is an apocalyptic number.

It is an amenable number.

147681437 is a deficient number, since it is larger than the sum of its proper divisors (1).

147681437 is an equidigital number, since it uses as much as digits as its factorization.

147681437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 112896, while the sum is 41.

The square root of 147681437 is about 12152.4251489158. The cubic root of 147681437 is about 528.5774561593.

The spelling of 147681437 in words is "one hundred forty-seven million, six hundred eighty-one thousand, four hundred thirty-seven".