1142520241 has 4 divisors (see below), whose sum is σ = 1209727332. Its totient is φ = 1075313152.

The previous prime is 1142520121. The next prime is 1142520259. The reversal of 1142520241 is 1420252411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1420252411 = 36929 ⋅38459.

It can be written as a sum of positive squares in 2 ways, for example, as 404854641 + 737665600 = 20121^2 + 27160^2 .

It is a cyclic number.

It is not a de Polignac number, because 1142520241 - 2¹¹ = 1142518193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1142520271) 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, 33603520 + ... + 33603553.

It is an arithmetic number, because the mean of its divisors is an integer number (302431833).

Almost surely, 2^1142520241 is an apocalyptic number.

It is an amenable number.

1142520241 is a deficient number, since it is larger than the sum of its proper divisors (67207091).

1142520241 is an equidigital number, since it uses as much as digits as its factorization.

1142520241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67207090.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 1142520241 is about 33801.1869761995. The cubic root of 1142520241 is about 1045.4131714785.

Adding to 1142520241 its reverse (1420252411), we get a palindrome (2562772652).

It can be divided in two parts, 1142520 and 241, that added together give a square (1142761 = 1069²).

The spelling of 1142520241 in words is "one billion, one hundred forty-two million, five hundred twenty thousand, two hundred forty-one".