1142255501 has 2 divisors, whose sum is σ = 1142255502. Its totient is φ = 1142255500.

The previous prime is 1142255497. The next prime is 1142255533. The reversal of 1142255501 is 1055522411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1141764100 + 491401 = 33790^2 + 701^2 .

It is an emirp because it is prime and its reverse (1055522411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1142255501 - 2² = 1142255497 is a prime.

It is a super-2 number, since 2×1142255501² = 2609495259129522002, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1142255591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571127750 + 571127751.

It is an arithmetic number, because the mean of its divisors is an integer number (571127751).

Almost surely, 2^1142255501 is an apocalyptic number.

It is an amenable number.

1142255501 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142255501 is an equidigital number, since it uses as much as digits as its factorization.

1142255501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 1142255501 is about 33797.2706146517. The cubic root of 1142255501 is about 1045.3324189887.

Adding to 1142255501 its reverse (1055522411), we get a palindrome (2197777912).

The spelling of 1142255501 in words is "one billion, one hundred forty-two million, two hundred fifty-five thousand, five hundred one".