101912401 has 2 divisors, whose sum is σ = 101912402. Its totient is φ = 101912400.

The previous prime is 101912389. The next prime is 101912431. The reversal of 101912401 is 104219101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99022401 + 2890000 = 9951^2 + 1700^2 .

It is a cyclic number.

It is not a de Polignac number, because 101912401 - 2¹⁹ = 101388113 is a prime.

It is a super-2 number, since 2×101912401² = 20772274955169602, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (101912431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50956200 + 50956201.

It is an arithmetic number, because the mean of its divisors is an integer number (50956201).

Almost surely, 2^101912401 is an apocalyptic number.

It is an amenable number.

101912401 is a deficient number, since it is larger than the sum of its proper divisors (1).

101912401 is an equidigital number, since it uses as much as digits as its factorization.

101912401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 101912401 is about 10095.1672101060. The cubic root of 101912401 is about 467.0990791922.

The spelling of 101912401 in words is "one hundred one million, nine hundred twelve thousand, four hundred one".