634156241 has 2 divisors, whose sum is σ = 634156242. Its totient is φ = 634156240.

The previous prime is 634156169. The next prime is 634156277. The reversal of 634156241 is 142651436.

634156241 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., 631466641 + 2689600 = 25129^2 + 1640^2 .

It is a cyclic number.

It is not a de Polignac number, because 634156241 - 2¹⁰ = 634155217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 634156198 and 634156207.

It is not a weakly prime, because it can be changed into another prime (634156291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317078120 + 317078121.

It is an arithmetic number, because the mean of its divisors is an integer number (317078121).

Almost surely, 2^634156241 is an apocalyptic number.

It is an amenable number.

634156241 is a deficient number, since it is larger than the sum of its proper divisors (1).

634156241 is an equidigital number, since it uses as much as digits as its factorization.

634156241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 32.

The square root of 634156241 is about 25182.4589943079. The cubic root of 634156241 is about 859.1429360322.

The spelling of 634156241 in words is "six hundred thirty-four million, one hundred fifty-six thousand, two hundred forty-one".