1026142553 has 4 divisors (see below), whose sum is σ = 1026727680. Its totient is φ = 1025557428.

The previous prime is 1026142541. The next prime is 1026142591. The reversal of 1026142553 is 3552416201.

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 1026142553 - 2¹² = 1026138457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1026145553) 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, 289925 + ... + 293442.

It is an arithmetic number, because the mean of its divisors is an integer number (256681920).

Almost surely, 2^1026142553 is an apocalyptic number.

It is an amenable number.

1026142553 is a deficient number, since it is larger than the sum of its proper divisors (585127).

1026142553 is an equidigital number, since it uses as much as digits as its factorization.

1026142553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585126.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 1026142553 is about 32033.4598974260. The cubic root of 1026142553 is about 1008.6393313463.

Adding to 1026142553 its reverse (3552416201), we get a palindrome (4578558754).

The spelling of 1026142553 in words is "one billion, twenty-six million, one hundred forty-two thousand, five hundred fifty-three".