1052535421 has 4 divisors (see below), whose sum is σ = 1202897632. Its totient is φ = 902173212.

The previous prime is 1052535413. The next prime is 1052535439. The reversal of 1052535421 is 1245352501.

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 1052535421 - 2³ = 1052535413 is a prime.

It is a super-2 number, since 2×1052535421² = 2215661624919294482, 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 1052535421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1052535481) 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, 75181095 + ... + 75181108.

It is an arithmetic number, because the mean of its divisors is an integer number (300724408).

Almost surely, 2^1052535421 is an apocalyptic number.

It is an amenable number.

1052535421 is a deficient number, since it is larger than the sum of its proper divisors (150362211).

1052535421 is an equidigital number, since it uses as much as digits as its factorization.

1052535421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150362210.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 1052535421 is about 32442.8022988151. The cubic root of 1052535421 is about 1017.2137921277.

Adding to 1052535421 its reverse (1245352501), we get a palindrome (2297887922).

The spelling of 1052535421 in words is "one billion, fifty-two million, five hundred thirty-five thousand, four hundred twenty-one".