1141700821 has 2 divisors, whose sum is σ = 1141700822. Its totient is φ = 1141700820.

The previous prime is 1141700809. The next prime is 1141700839. The reversal of 1141700821 is 1280071411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1141493796 + 207025 = 33786^2 + 455^2 .

It is a cyclic number.

It is not a de Polignac number, because 1141700821 - 2⁵ = 1141700789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1141700851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570850410 + 570850411.

It is an arithmetic number, because the mean of its divisors is an integer number (570850411).

Almost surely, 2^1141700821 is an apocalyptic number.

It is an amenable number.

1141700821 is a deficient number, since it is larger than the sum of its proper divisors (1).

1141700821 is an equidigital number, since it uses as much as digits as its factorization.

1141700821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 25.

The square root of 1141700821 is about 33789.0636301156. The cubic root of 1141700821 is about 1045.1631868961.

The spelling of 1141700821 in words is "one billion, one hundred forty-one million, seven hundred thousand, eight hundred twenty-one".