101542069 has 2 divisors, whose sum is σ = 101542070. Its totient is φ = 101542068.

The previous prime is 101542057. The next prime is 101542093. The reversal of 101542069 is 960245101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80730225 + 20811844 = 8985^2 + 4562^2 .

It is a cyclic number.

It is not a de Polignac number, because 101542069 - 2¹⁹ = 101017781 is a prime.

It is a super-2 number, since 2×101542069² = 20621583553601522, which contains 22 as substring.

It is equal to p_5845141 and since 101542069 and 5845141 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101542039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50771034 + 50771035.

It is an arithmetic number, because the mean of its divisors is an integer number (50771035).

Almost surely, 2^101542069 is an apocalyptic number.

It is an amenable number.

101542069 is a deficient number, since it is larger than the sum of its proper divisors (1).

101542069 is an equidigital number, since it uses as much as digits as its factorization.

101542069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 101542069 is about 10076.8084729244. The cubic root of 101542069 is about 466.5326067869.

The spelling of 101542069 in words is "one hundred one million, five hundred forty-two thousand, sixty-nine".