2162640541 has 2 divisors, whose sum is σ = 2162640542. Its totient is φ = 2162640540.

The previous prime is 2162640509. The next prime is 2162640559. The reversal of 2162640541 is 1450462612.

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., 1810928025 + 351712516 = 42555^2 + 18754^2 .

It is a cyclic number.

It is not a de Polignac number, because 2162640541 - 2⁵ = 2162640509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2162640241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1081320270 + 1081320271.

It is an arithmetic number, because the mean of its divisors is an integer number (1081320271).

Almost surely, 2^2162640541 is an apocalyptic number.

It is an amenable number.

2162640541 is a deficient number, since it is larger than the sum of its proper divisors (1).

2162640541 is an equidigital number, since it uses as much as digits as its factorization.

2162640541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 2162640541 is about 46504.1991759884. The cubic root of 2162640541 is about 1293.1873470321.

The spelling of 2162640541 in words is "two billion, one hundred sixty-two million, six hundred forty thousand, five hundred forty-one".