2141209757 has 2 divisors, whose sum is σ = 2141209758. Its totient is φ = 2141209756.

The previous prime is 2141209663. The next prime is 2141209831. The reversal of 2141209757 is 7579021412.

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., 2119129156 + 22080601 = 46034^2 + 4699^2 .

It is a cyclic number.

It is not a de Polignac number, because 2141209757 - 2¹⁰ = 2141208733 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2141209757.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2141209157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1070604878 + 1070604879.

It is an arithmetic number, because the mean of its divisors is an integer number (1070604879).

Almost surely, 2^2141209757 is an apocalyptic number.

It is an amenable number.

2141209757 is a deficient number, since it is larger than the sum of its proper divisors (1).

2141209757 is an equidigital number, since it uses as much as digits as its factorization.

2141209757 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35280, while the sum is 38.

The square root of 2141209757 is about 46273.2077664819. The cubic root of 2141209757 is about 1288.9015260720.

The spelling of 2141209757 in words is "two billion, one hundred forty-one million, two hundred nine thousand, seven hundred fifty-seven".