121425347 has 2 divisors, whose sum is σ = 121425348. Its totient is φ = 121425346.

The previous prime is 121425323. The next prime is 121425377. The reversal of 121425347 is 743524121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121425347 - 2¹⁶ = 121359811 is a prime.

It is a super-2 number, since 2×121425347² = 29488229788140818, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121425307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60712673 + 60712674.

It is an arithmetic number, because the mean of its divisors is an integer number (60712674).

Almost surely, 2^121425347 is an apocalyptic number.

121425347 is a deficient number, since it is larger than the sum of its proper divisors (1).

121425347 is an equidigital number, since it uses as much as digits as its factorization.

121425347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6720, while the sum is 29.

The square root of 121425347 is about 11019.3169933531. The cubic root of 121425347 is about 495.1876267262.

Adding to 121425347 its reverse (743524121), we get a palindrome (864949468).

The spelling of 121425347 in words is "one hundred twenty-one million, four hundred twenty-five thousand, three hundred forty-seven".