2141551441 has 2 divisors, whose sum is σ = 2141551442. Its totient is φ = 2141551440.

The previous prime is 2141551439. The next prime is 2141551457. The reversal of 2141551441 is 1441551412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2091141441 + 50410000 = 45729^2 + 7100^2 .

It is a cyclic number.

It is not a de Polignac number, because 2141551441 - 2¹ = 2141551439 is a prime.

Together with 2141551439, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2141551411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1070775720 + 1070775721.

It is an arithmetic number, because the mean of its divisors is an integer number (1070775721).

Almost surely, 2^2141551441 is an apocalyptic number.

It is an amenable number.

2141551441 is a deficient number, since it is larger than the sum of its proper divisors (1).

2141551441 is an equidigital number, since it uses as much as digits as its factorization.

2141551441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3200, while the sum is 28.

The square root of 2141551441 is about 46276.8996476644. The cubic root of 2141551441 is about 1288.9700813368.

The spelling of 2141551441 in words is "two billion, one hundred forty-one million, five hundred fifty-one thousand, four hundred forty-one".