1142969501 has 2 divisors, whose sum is σ = 1142969502. Its totient is φ = 1142969500.

The previous prime is 1142969447. The next prime is 1142969507. The reversal of 1142969501 is 1059692411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 823632601 + 319336900 = 28699^2 + 17870^2 .

It is an emirp because it is prime and its reverse (1059692411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1142969501 - 2²⁶ = 1075860637 is a prime.

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 (1142969507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571484750 + 571484751.

It is an arithmetic number, because the mean of its divisors is an integer number (571484751).

Almost surely, 2^1142969501 is an apocalyptic number.

It is an amenable number.

1142969501 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142969501 is an equidigital number, since it uses as much as digits as its factorization.

1142969501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 38.

The square root of 1142969501 is about 33807.8319476420. The cubic root of 1142969501 is about 1045.5501787595.

The spelling of 1142969501 in words is "one billion, one hundred forty-two million, nine hundred sixty-nine thousand, five hundred one".