100161541 has 2 divisors, whose sum is σ = 100161542. Its totient is φ = 100161540.

The previous prime is 100161499. The next prime is 100161547. The reversal of 100161541 is 145161001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52620516 + 47541025 = 7254^2 + 6895^2 .

It is an emirp because it is prime and its reverse (145161001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100161541 - 2¹⁵ = 100128773 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100161547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50080770 + 50080771.

It is an arithmetic number, because the mean of its divisors is an integer number (50080771).

Almost surely, 2^100161541 is an apocalyptic number.

It is an amenable number.

100161541 is a deficient number, since it is larger than the sum of its proper divisors (1).

100161541 is an equidigital number, since it uses as much as digits as its factorization.

100161541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 100161541 is about 10008.0737906952. The cubic root of 100161541 is about 464.4086845330.

The spelling of 100161541 in words is "one hundred million, one hundred sixty-one thousand, five hundred forty-one".