1430157144457 has 4 divisors (see below), whose sum is σ = 1431825940116. Its totient is φ = 1428488348800.

The previous prime is 1430157144443. The next prime is 1430157144473. The reversal of 1430157144457 is 7544417510341.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 819213250816 + 610943893641 = 905104^2 + 781629^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1430157144457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1430157144497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 834396544 + ... + 834398257.

It is an arithmetic number, because the mean of its divisors is an integer number (357956485029).

Almost surely, 2^{1430157144457} is an apocalyptic number.

It is an amenable number.

1430157144457 is a deficient number, since it is larger than the sum of its proper divisors (1668795659).

1430157144457 is an equidigital number, since it uses as much as digits as its factorization.

1430157144457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1668795658.

The product of its (nonzero) digits is 940800, while the sum is 46.

The spelling of 1430157144457 in words is "one trillion, four hundred thirty billion, one hundred fifty-seven million, one hundred forty-four thousand, four hundred fifty-seven".