287381041 has 2 divisors, whose sum is σ = 287381042. Its totient is φ = 287381040.

The previous prime is 287380991. The next prime is 287381047. The reversal of 287381041 is 140183782.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 245079025 + 42302016 = 15655^2 + 6504^2 .

It is a cyclic number.

It is not a de Polignac number, because 287381041 - 2⁷ = 287380913 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 287380988 and 287381006.

It is not a weakly prime, because it can be changed into another prime (287381047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143690520 + 143690521.

It is an arithmetic number, because the mean of its divisors is an integer number (143690521).

Almost surely, 2^287381041 is an apocalyptic number.

It is an amenable number.

287381041 is a deficient number, since it is larger than the sum of its proper divisors (1).

287381041 is an equidigital number, since it uses as much as digits as its factorization.

287381041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 287381041 is about 16952.3166853383. The cubic root of 287381041 is about 659.9120184221.

The spelling of 287381041 in words is "two hundred eighty-seven million, three hundred eighty-one thousand, forty-one".