2148472061 has 2 divisors, whose sum is σ = 2148472062. Its totient is φ = 2148472060.

The previous prime is 2148472043. The next prime is 2148472091. The reversal of 2148472061 is 1602748412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1228502500 + 919969561 = 35050^2 + 30331^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2148472061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2148472031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1074236030 + 1074236031.

It is an arithmetic number, because the mean of its divisors is an integer number (1074236031).

Almost surely, 2^2148472061 is an apocalyptic number.

It is an amenable number.

2148472061 is a deficient number, since it is larger than the sum of its proper divisors (1).

2148472061 is an equidigital number, since it uses as much as digits as its factorization.

2148472061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 2148472061 is about 46351.6133591917. The cubic root of 2148472061 is about 1290.3570633880.

The spelling of 2148472061 in words is "two billion, one hundred forty-eight million, four hundred seventy-two thousand, sixty-one".