1025321153 has 16 divisors (see below), whose sum is σ = 1127831040. Its totient is φ = 928166400.

The previous prime is 1025321131. The next prime is 1025321179. The reversal of 1025321153 is 3511235201.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1025321153 - 2¹⁰ = 1025320129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1025321113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39128 + ... + 59846.

It is an arithmetic number, because the mean of its divisors is an integer number (70489440).

Almost surely, 2^1025321153 is an apocalyptic number.

It is an amenable number.

1025321153 is a deficient number, since it is larger than the sum of its proper divisors (102509887).

1025321153 is a wasteful number, since it uses less digits than its factorization.

1025321153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20848.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 1025321153 is about 32020.6363615716. The cubic root of 1025321153 is about 1008.3701297927.

Adding to 1025321153 its reverse (3511235201), we get a palindrome (4536556354).

The spelling of 1025321153 in words is "one billion, twenty-five million, three hundred twenty-one thousand, one hundred fifty-three".