1052443997 has 4 divisors (see below), whose sum is σ = 1148120736. Its totient is φ = 956767260.

The previous prime is 1052443981. The next prime is 1052443999. The reversal of 1052443997 is 7993442501.

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 1052443997 - 2⁴ = 1052443981 is a prime.

It is a super-2 number, since 2×1052443997² = 2215276733642672018, 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 (1052443999) 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, 47838353 + ... + 47838374.

It is an arithmetic number, because the mean of its divisors is an integer number (287030184).

Almost surely, 2^1052443997 is an apocalyptic number.

It is an amenable number.

1052443997 is a deficient number, since it is larger than the sum of its proper divisors (95676739).

1052443997 is an equidigital number, since it uses as much as digits as its factorization.

1052443997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95676738.

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 1052443997 is about 32441.3932653948. The cubic root of 1052443997 is about 1017.1843392958.

The spelling of 1052443997 in words is "one billion, fifty-two million, four hundred forty-three thousand, nine hundred ninety-seven".