1358146889257 has 4 divisors (see below), whose sum is σ = 1359537009876. Its totient is φ = 1356756768640.

The previous prime is 1358146889251. The next prime is 1358146889261. The reversal of 1358146889257 is 7529886418531.

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 956677653801 + 401469235456 = 978099^2 + 633616^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1358146889257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1358146889192 and 1358146889201.

It is not an unprimeable number, because it can be changed into a prime (1358146889251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 695058844 + ... + 695060797.

It is an arithmetic number, because the mean of its divisors is an integer number (339884252469).

Almost surely, 2^{1358146889257} is an apocalyptic number.

It is an amenable number.

1358146889257 is a deficient number, since it is larger than the sum of its proper divisors (1390120619).

1358146889257 is an equidigital number, since it uses as much as digits as its factorization.

1358146889257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1390120618.

The product of its digits is 116121600, while the sum is 67.

The spelling of 1358146889257 in words is "one trillion, three hundred fifty-eight billion, one hundred forty-six million, eight hundred eighty-nine thousand, two hundred fifty-seven".