1052547421 has 16 divisors (see below), whose sum is σ = 1104024064. Its totient is φ = 1002610224.

The previous prime is 1052547407. The next prime is 1052547481. The reversal of 1052547421 is 1247452501.

It is a cyclic number.

It is not a de Polignac number, because 1052547421 - 2²⁹ = 515676509 is a prime.

It is a super-2 number, since 2×1052547421² = 2215712146907502482, 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 (1052547481) 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 15 ways as a sum of consecutive naturals, for example, 294970 + ... + 298516.

It is an arithmetic number, because the mean of its divisors is an integer number (69001504).

Almost surely, 2^1052547421 is an apocalyptic number.

It is an amenable number.

1052547421 is a deficient number, since it is larger than the sum of its proper divisors (51476643).

1052547421 is a wasteful number, since it uses less digits than its factorization.

1052547421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3760.

The product of its (nonzero) digits is 11200, while the sum is 31.

The square root of 1052547421 is about 32442.9872391554. The cubic root of 1052547421 is about 1017.2176578786.

Adding to 1052547421 its reverse (1247452501), we get a palindrome (2299999922).

The spelling of 1052547421 in words is "one billion, fifty-two million, five hundred forty-seven thousand, four hundred twenty-one".