1057468109 has 4 divisors (see below), whose sum is σ = 1060868640. Its totient is φ = 1054067580.

The previous prime is 1057468091. The next prime is 1057468117. The reversal of 1057468109 is 9018647501.

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 1057468109 - 2¹² = 1057464013 is a prime.

It is a super-2 number, since 2×1057468109² = 2236477603104071762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1057468129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1699799 + ... + 1700420.

It is an arithmetic number, because the mean of its divisors is an integer number (265217160).

Almost surely, 2^1057468109 is an apocalyptic number.

It is an amenable number.

1057468109 is a deficient number, since it is larger than the sum of its proper divisors (3400531).

1057468109 is an equidigital number, since it uses as much as digits as its factorization.

1057468109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3400530.

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 1057468109 is about 32518.7347386088. The cubic root of 1057468109 is about 1018.8003674948.

The spelling of 1057468109 in words is "one billion, fifty-seven million, four hundred sixty-eight thousand, one hundred nine".