102140347 has 2 divisors, whose sum is σ = 102140348. Its totient is φ = 102140346.

The previous prime is 102140329. The next prime is 102140377. The reversal of 102140347 is 743041201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102140347 - 2¹¹ = 102138299 is a prime.

It is not a weakly prime, because it can be changed into another prime (102140317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51070173 + 51070174.

It is an arithmetic number, because the mean of its divisors is an integer number (51070174).

Almost surely, 2^102140347 is an apocalyptic number.

102140347 is a deficient number, since it is larger than the sum of its proper divisors (1).

102140347 is an equidigital number, since it uses as much as digits as its factorization.

102140347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 102140347 is about 10106.4507617660. The cubic root of 102140347 is about 467.4470711332.

Adding to 102140347 its reverse (743041201), we get a palindrome (845181548).

The spelling of 102140347 in words is "one hundred two million, one hundred forty thousand, three hundred forty-seven".