120012547 has 2 divisors, whose sum is σ = 120012548. Its totient is φ = 120012546.

The previous prime is 120012539. The next prime is 120012577. The reversal of 120012547 is 745210021.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (745210021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120012547 - 2³ = 120012539 is a prime.

It is a super-2 number, since 2×120012547² = 28806022874854418, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (120012517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60006273 + 60006274.

It is an arithmetic number, because the mean of its divisors is an integer number (60006274).

Almost surely, 2^120012547 is an apocalyptic number.

120012547 is a deficient number, since it is larger than the sum of its proper divisors (1).

120012547 is an equidigital number, since it uses as much as digits as its factorization.

120012547 is an odious number, because the sum of its binary digits is odd.

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

The square root of 120012547 is about 10955.0238247117. The cubic root of 120012547 is about 493.2596051353.

Adding to 120012547 its reverse (745210021), we get a palindrome (865222568).

The spelling of 120012547 in words is "one hundred twenty million, twelve thousand, five hundred forty-seven".