1142160253 has 8 divisors (see below), whose sum is σ = 1230624248. Its totient is φ = 1053782784.

The previous prime is 1142160241. The next prime is 1142160277. The reversal of 1142160253 is 3520612411.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4919524 + 1137240729 = 2218^2 + 33723^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1142160253 - 2¹³ = 1142152061 is a prime.

It is a super-3 number, since 3×1142160253³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142160953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7225 + ... + 48337.

It is an arithmetic number, because the mean of its divisors is an integer number (153828031).

Almost surely, 2^1142160253 is an apocalyptic number.

1142160253 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1142160253 is a deficient number, since it is larger than the sum of its proper divisors (88463995).

1142160253 is a wasteful number, since it uses less digits than its factorization.

1142160253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43263.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1142160253 is about 33795.8614774058. The cubic root of 1142160253 is about 1045.3033628538.

Adding to 1142160253 its reverse (3520612411), we get a palindrome (4662772664).

The spelling of 1142160253 in words is "one billion, one hundred forty-two million, one hundred sixty thousand, two hundred fifty-three".