1021057146197 has 8 divisors (see below), whose sum is σ = 1113934306752. Its totient is φ = 928188949600.

The previous prime is 1021057146191. The next prime is 1021057146211. The reversal of 1021057146197 is 7916417501201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1021057146197 - 2¹⁸ = 1021056884053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021057146191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2001704 + ... + 2459457.

It is an arithmetic number, because the mean of its divisors is an integer number (139241788344).

Almost surely, 2^{1021057146197} is an apocalyptic number.

It is an amenable number.

1021057146197 is a deficient number, since it is larger than the sum of its proper divisors (92877160555).

1021057146197 is a wasteful number, since it uses less digits than its factorization.

1021057146197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4481979.

The product of its (nonzero) digits is 105840, while the sum is 44.

The spelling of 1021057146197 in words is "one trillion, twenty-one billion, fifty-seven million, one hundred forty-six thousand, one hundred ninety-seven".