1142102025 has 45 divisors (see below), whose sum is σ = 2118388503. Its totient is φ = 608310000.

The previous prime is 1142101997. The next prime is 1142102029. The reversal of 1142102025 is 5202012411.

The square root of 1142102025 is 33795.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 411156729 + 730945296 = 20277^2 + 27036^2 .

It is a tau number, because it is divible by the number of its divisors (45).

It is not a de Polignac number, because 1142102025 - 2²⁹ = 605231113 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1142101989 and 1142102007.

It is not an unprimeable number, because it can be changed into a prime (1142102029) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 1520400 + ... + 1521150.

Almost surely, 2^1142102025 is an apocalyptic number.

1142102025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1142102025 is the 33795-th square number.

1142102025 is the 16898-th centered octagonal number.

It is an amenable number.

1142102025 is a deficient number, since it is larger than the sum of its proper divisors (976286478).

1142102025 is an frugal number, since it uses more digits than its factorization.

1142102025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1524 (or 759 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The cubic root of 1142102025 is about 1045.2855991589.

Adding to 1142102025 its reverse (5202012411), we get a palindrome (6344114436).

The spelling of 1142102025 in words is "one billion, one hundred forty-two million, one hundred two thousand, twenty-five".