1142030253 has 32 divisors (see below), whose sum is σ = 1880266752. Its totient is φ = 600408000.

The previous prime is 1142030251. The next prime is 1142030261. The reversal of 1142030253 is 3520302411.

It is not a de Polignac number, because 1142030253 - 2¹ = 1142030251 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142030251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78178 + ... + 91628.

It is an arithmetic number, because the mean of its divisors is an integer number (58758336).

Almost surely, 2^1142030253 is an apocalyptic number.

1142030253 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1142030253 is a deficient number, since it is larger than the sum of its proper divisors (738236499).

1142030253 is a wasteful number, since it uses less digits than its factorization.

1142030253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13785.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1142030253 is about 33793.9381102588. The cubic root of 1142030253 is about 1045.2637027469.

Adding to 1142030253 its reverse (3520302411), we get a palindrome (4662332664).

The spelling of 1142030253 in words is "one billion, one hundred forty-two million, thirty thousand, two hundred fifty-three".