122520143 has 2 divisors, whose sum is σ = 122520144. Its totient is φ = 122520142.

The previous prime is 122520127. The next prime is 122520179. The reversal of 122520143 is 341025221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122520143 - 2⁴ = 122520127 is a prime.

It is a super-2 number, since 2×122520143² = 30022370881480898, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122520193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61260071 + 61260072.

It is an arithmetic number, because the mean of its divisors is an integer number (61260072).

Almost surely, 2^122520143 is an apocalyptic number.

122520143 is a deficient number, since it is larger than the sum of its proper divisors (1).

122520143 is an equidigital number, since it uses as much as digits as its factorization.

122520143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 122520143 is about 11068.8817411697. The cubic root of 122520143 is about 496.6714142052.

Adding to 122520143 its reverse (341025221), we get a palindrome (463545364).

The spelling of 122520143 in words is "one hundred twenty-two million, five hundred twenty thousand, one hundred forty-three".