154360861 has 2 divisors, whose sum is σ = 154360862. Its totient is φ = 154360860.

The previous prime is 154360819. The next prime is 154360879. The reversal of 154360861 is 168063451.

It is a happy number.

154360861 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., 90839961 + 63520900 = 9531^2 + 7970^2 .

It is an emirp because it is prime and its reverse (168063451) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-154360861 is a prime.

It is a super-2 number, since 2×154360861² = 47654550817322642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154360961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77180430 + 77180431.

It is an arithmetic number, because the mean of its divisors is an integer number (77180431).

Almost surely, 2^154360861 is an apocalyptic number.

It is an amenable number.

154360861 is a deficient number, since it is larger than the sum of its proper divisors (1).

154360861 is an equidigital number, since it uses as much as digits as its factorization.

154360861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 154360861 is about 12424.2046425516. The cubic root of 154360861 is about 536.4291842198.

The spelling of 154360861 in words is "one hundred fifty-four million, three hundred sixty thousand, eight hundred sixty-one".