1142503261 has 2 divisors, whose sum is σ = 1142503262. Its totient is φ = 1142503260.

The previous prime is 1142503237. The next prime is 1142503267. The reversal of 1142503261 is 1623052411.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 619512100 + 522991161 = 24890^2 + 22869^2 .

It is a cyclic number.

It is not a de Polignac number, because 1142503261 - 2⁹ = 1142502749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1142503267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571251630 + 571251631.

It is an arithmetic number, because the mean of its divisors is an integer number (571251631).

Almost surely, 2^1142503261 is an apocalyptic number.

It is an amenable number.

1142503261 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142503261 is an equidigital number, since it uses as much as digits as its factorization.

1142503261 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1142503261 is about 33800.9358006550. The cubic root of 1142503261 is about 1045.4079925174.

Adding to 1142503261 its reverse (1623052411), we get a palindrome (2765555672).

The spelling of 1142503261 in words is "one billion, one hundred forty-two million, five hundred three thousand, two hundred sixty-one".