122898487 has 2 divisors, whose sum is σ = 122898488. Its totient is φ = 122898486.

The previous prime is 122898463. The next prime is 122898509. The reversal of 122898487 is 784898221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122898487 - 2⁷ = 122898359 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122898487.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122892487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61449243 + 61449244.

It is an arithmetic number, because the mean of its divisors is an integer number (61449244).

Almost surely, 2^122898487 is an apocalyptic number.

122898487 is a deficient number, since it is larger than the sum of its proper divisors (1).

122898487 is an equidigital number, since it uses as much as digits as its factorization.

122898487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 516096, while the sum is 49.

The square root of 122898487 is about 11085.9590022695. The cubic root of 122898487 is about 497.1821317368.

The spelling of 122898487 in words is "one hundred twenty-two million, eight hundred ninety-eight thousand, four hundred eighty-seven".