102040027 has 2 divisors, whose sum is σ = 102040028. Its totient is φ = 102040026.

The previous prime is 102039991. The next prime is 102040061. The reversal of 102040027 is 720040201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102040027 is a prime.

It is a super-2 number, since 2×102040027² = 20824334220321458, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (102040927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51020013 + 51020014.

It is an arithmetic number, because the mean of its divisors is an integer number (51020014).

Almost surely, 2^102040027 is an apocalyptic number.

102040027 is a deficient number, since it is larger than the sum of its proper divisors (1).

102040027 is an equidigital number, since it uses as much as digits as its factorization.

102040027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 102040027 is about 10101.4863757766. The cubic root of 102040027 is about 467.2939822616.

Adding to 102040027 its reverse (720040201), we get a palindrome (822080228).

The spelling of 102040027 in words is "one hundred two million, forty thousand, twenty-seven".