361440539 has 2 divisors, whose sum is σ = 361440540. Its totient is φ = 361440538.

The previous prime is 361440511. The next prime is 361440613. The reversal of 361440539 is 935044163.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 361440539 - 2²⁰ = 360391963 is a prime.

It is a super-2 number, since 2×361440539² = 261278526465221042, which contains 22 as substring.

It is equal to p_19384217 and since 361440539 and 19384217 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 361440499 and 361440508.

It is not a weakly prime, because it can be changed into another prime (361448539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180720269 + 180720270.

It is an arithmetic number, because the mean of its divisors is an integer number (180720270).

Almost surely, 2^361440539 is an apocalyptic number.

361440539 is a deficient number, since it is larger than the sum of its proper divisors (1).

361440539 is an equidigital number, since it uses as much as digits as its factorization.

361440539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 361440539 is about 19011.5895968748. The cubic root of 361440539 is about 712.3262579958.

The spelling of 361440539 in words is "three hundred sixty-one million, four hundred forty thousand, five hundred thirty-nine".