1057172437 has 4 divisors (see below), whose sum is σ = 1103136480. Its totient is φ = 1011208396.

The previous prime is 1057172429. The next prime is 1057172461. The reversal of 1057172437 is 7342717501.

It is a happy number.

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 1057172437 - 2³ = 1057172429 is a prime.

It is a super-2 number, since 2×1057172437² = 2235227123105037938, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1057172396 and 1057172405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1057172477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22981987 + ... + 22982032.

It is an arithmetic number, because the mean of its divisors is an integer number (275784120).

Almost surely, 2^1057172437 is an apocalyptic number.

It is an amenable number.

1057172437 is a deficient number, since it is larger than the sum of its proper divisors (45964043).

1057172437 is an equidigital number, since it uses as much as digits as its factorization.

1057172437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45964042.

The product of its (nonzero) digits is 41160, while the sum is 37.

The square root of 1057172437 is about 32514.1882414432. The cubic root of 1057172437 is about 1018.7054051916.

Adding to 1057172437 its reverse (7342717501), we get a palindrome (8399889938).

The spelling of 1057172437 in words is "one billion, fifty-seven million, one hundred seventy-two thousand, four hundred thirty-seven".