101242069 has 2 divisors, whose sum is σ = 101242070. Its totient is φ = 101242068.

The previous prime is 101242019. The next prime is 101242087. The reversal of 101242069 is 960242101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87179569 + 14062500 = 9337^2 + 3750^2 .

It is a cyclic number.

It is not a de Polignac number, because 101242069 - 2⁷ = 101241941 is a prime.

It is a super-2 number, since 2×101242069² = 20499913070801522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101242019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50621034 + 50621035.

It is an arithmetic number, because the mean of its divisors is an integer number (50621035).

Almost surely, 2^101242069 is an apocalyptic number.

It is an amenable number.

101242069 is a deficient number, since it is larger than the sum of its proper divisors (1).

101242069 is an equidigital number, since it uses as much as digits as its factorization.

101242069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 101242069 is about 10061.9117964729. The cubic root of 101242069 is about 466.0727059649.

The spelling of 101242069 in words is "one hundred one million, two hundred forty-two thousand, sixty-nine".