151100861 has 2 divisors, whose sum is σ = 151100862. Its totient is φ = 151100860.

The previous prime is 151100821. The next prime is 151100891. The reversal of 151100861 is 168001151.

It is a happy number.

151100861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 150062500 + 1038361 = 12250^2 + 1019^2 .

It is an emirp because it is prime and its reverse (168001151) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 151100861 - 2¹⁴ = 151084477 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (151100821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75550430 + 75550431.

It is an arithmetic number, because the mean of its divisors is an integer number (75550431).

Almost surely, 2^151100861 is an apocalyptic number.

It is an amenable number.

151100861 is a deficient number, since it is larger than the sum of its proper divisors (1).

151100861 is an equidigital number, since it uses as much as digits as its factorization.

151100861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 23.

The square root of 151100861 is about 12292.3090182439. The cubic root of 151100861 is about 532.6259391926.

The spelling of 151100861 in words is "one hundred fifty-one million, one hundred thousand, eight hundred sixty-one".