3154642081 has 2 divisors, whose sum is σ = 3154642082. Its totient is φ = 3154642080.

The previous prime is 3154642063. The next prime is 3154642093. The reversal of 3154642081 is 1802464513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3131409681 + 23232400 = 55959^2 + 4820^2 .

It is a cyclic number.

It is not a de Polignac number, because 3154642081 - 2¹¹ = 3154640033 is a prime.

It is a super-2 number, since 2×3154642081² = 19903533318432021122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3154642781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1577321040 + 1577321041.

It is an arithmetic number, because the mean of its divisors is an integer number (1577321041).

Almost surely, 2^3154642081 is an apocalyptic number.

It is an amenable number.

3154642081 is a deficient number, since it is larger than the sum of its proper divisors (1).

3154642081 is an equidigital number, since it uses as much as digits as its factorization.

3154642081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 3154642081 is about 56166.2005213100. The cubic root of 3154642081 is about 1466.6169415362.

The spelling of 3154642081 in words is "three billion, one hundred fifty-four million, six hundred forty-two thousand, eighty-one".