120102547 has 2 divisors, whose sum is σ = 120102548. Its totient is φ = 120102546.

The previous prime is 120102523. The next prime is 120102607. The reversal of 120102547 is 745201021.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (745201021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120102547 is a prime.

It is not a weakly prime, because it can be changed into another prime (120103547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60051273 + 60051274.

It is an arithmetic number, because the mean of its divisors is an integer number (60051274).

Almost surely, 2^120102547 is an apocalyptic number.

120102547 is a deficient number, since it is larger than the sum of its proper divisors (1).

120102547 is an equidigital number, since it uses as much as digits as its factorization.

120102547 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 120102547 is about 10959.1307593258. The cubic root of 120102547 is about 493.3828763348.

Adding to 120102547 its reverse (745201021), we get a palindrome (865303568).

The spelling of 120102547 in words is "one hundred twenty million, one hundred two thousand, five hundred forty-seven".