101940869 has 2 divisors, whose sum is σ = 101940870. Its totient is φ = 101940868.

The previous prime is 101940799. The next prime is 101940907. The reversal of 101940869 is 968049101.

It is a happy number.

It is an a-pointer prime, because the next prime (101940907) can be obtained adding 101940869 to its sum of digits (38).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65820769 + 36120100 = 8113^2 + 6010^2 .

It is a cyclic number.

It is not a de Polignac number, because 101940869 - 2²⁰ = 100892293 is a prime.

It is a super-2 number, since 2×101940869² = 20783881544950322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101940169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50970434 + 50970435.

It is an arithmetic number, because the mean of its divisors is an integer number (50970435).

Almost surely, 2^101940869 is an apocalyptic number.

It is an amenable number.

101940869 is a deficient number, since it is larger than the sum of its proper divisors (1).

101940869 is an equidigital number, since it uses as much as digits as its factorization.

101940869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 101940869 is about 10096.5770932529. The cubic root of 101940869 is about 467.1425679744.

The spelling of 101940869 in words is "one hundred one million, nine hundred forty thousand, eight hundred sixty-nine".