115122001 has 2 divisors, whose sum is σ = 115122002. Its totient is φ = 115122000.

The previous prime is 115121983. The next prime is 115122017. The reversal of 115122001 is 100221511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77422401 + 37699600 = 8799^2 + 6140^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115122001 is a prime.

It is a super-2 number, since 2×115122001² = 26506150228488002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (115122101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57561000 + 57561001.

It is an arithmetic number, because the mean of its divisors is an integer number (57561001).

Almost surely, 2^115122001 is an apocalyptic number.

It is an amenable number.

115122001 is a deficient number, since it is larger than the sum of its proper divisors (1).

115122001 is an equidigital number, since it uses as much as digits as its factorization.

115122001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20, while the sum is 13.

The square root of 115122001 is about 10729.4921128635. The cubic root of 115122001 is about 486.4663187239.

Adding to 115122001 its reverse (100221511), we get a palindrome (215343512).

The spelling of 115122001 in words is "one hundred fifteen million, one hundred twenty-two thousand, one".