1957170841 has 4 divisors (see below), whose sum is σ = 1957341184. Its totient is φ = 1957000500.

The previous prime is 1957170811. The next prime is 1957170847. The reversal of 1957170841 is 1480717591.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1957170841 - 2⁹ = 1957170329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1957170847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66585 + ... + 91366.

It is an arithmetic number, because the mean of its divisors is an integer number (489335296).

Almost surely, 2^1957170841 is an apocalyptic number.

It is an amenable number.

1957170841 is a deficient number, since it is larger than the sum of its proper divisors (170343).

1957170841 is a wasteful number, since it uses less digits than its factorization.

1957170841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170342.

The product of its (nonzero) digits is 70560, while the sum is 43.

The square root of 1957170841 is about 44239.9236097894. The cubic root of 1957170841 is about 1250.8625174607.

The spelling of 1957170841 in words is "one billion, nine hundred fifty-seven million, one hundred seventy thousand, eight hundred forty-one".