1057267641 has 4 divisors (see below), whose sum is σ = 1409690192. Its totient is φ = 704845092.

The previous prime is 1057267639. The next prime is 1057267643. The reversal of 1057267641 is 1467627501.

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 an interprime number because it is at equal distance from previous prime (1057267639) and next prime (1057267643).

It is not a de Polignac number, because 1057267641 - 2¹ = 1057267639 is a prime.

It is a super-2 number, since 2×1057267641² = 2235629729411409762, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1057267641.

It is not an unprimeable number, because it can be changed into a prime (1057267643) 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, 176211271 + ... + 176211276.

It is an arithmetic number, because the mean of its divisors is an integer number (352422548).

Almost surely, 2^1057267641 is an apocalyptic number.

It is an amenable number.

1057267641 is a deficient number, since it is larger than the sum of its proper divisors (352422551).

1057267641 is an equidigital number, since it uses as much as digits as its factorization.

1057267641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352422550.

The product of its (nonzero) digits is 70560, while the sum is 39.

The square root of 1057267641 is about 32515.6522462644. The cubic root of 1057267641 is about 1018.7359842201.

The spelling of 1057267641 in words is "one billion, fifty-seven million, two hundred sixty-seven thousand, six hundred forty-one".