100071541 has 2 divisors, whose sum is σ = 100071542. Its totient is φ = 100071540.

The previous prime is 100071533. The next prime is 100071563. The reversal of 100071541 is 145170001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99800100 + 271441 = 9990^2 + 521^2 .

It is a cyclic number.

It is not a de Polignac number, because 100071541 - 2³ = 100071533 is a prime.

It is a super-2 number, since 2×100071541² = 20028626636229362, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100071581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50035770 + 50035771.

It is an arithmetic number, because the mean of its divisors is an integer number (50035771).

Almost surely, 2^100071541 is an apocalyptic number.

It is an amenable number.

100071541 is a deficient number, since it is larger than the sum of its proper divisors (1).

100071541 is an equidigital number, since it uses as much as digits as its factorization.

100071541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 100071541 is about 10003.5764104644. The cubic root of 100071541 is about 464.2695449449.

The spelling of 100071541 in words is "one hundred million, seventy-one thousand, five hundred forty-one".