1254901810157 has 2 divisors, whose sum is σ = 1254901810158. Its totient is φ = 1254901810156.

The previous prime is 1254901810133. The next prime is 1254901810219. The reversal of 1254901810157 is 7510181094521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 980612887081 + 274288923076 = 990259^2 + 523726^2 .

It is a cyclic number.

It is not a de Polignac number, because 1254901810157 - 2¹² = 1254901806061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1254901410157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627450905078 + 627450905079.

It is an arithmetic number, because the mean of its divisors is an integer number (627450905079).

Almost surely, 2^{1254901810157} is an apocalyptic number.

It is an amenable number.

1254901810157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1254901810157 is an equidigital number, since it uses as much as digits as its factorization.

1254901810157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 100800, while the sum is 44.

The spelling of 1254901810157 in words is "one trillion, two hundred fifty-four billion, nine hundred one million, eight hundred ten thousand, one hundred fifty-seven".