5470136821 has 2 divisors, whose sum is σ = 5470136822. Its totient is φ = 5470136820.

The previous prime is 5470136807. The next prime is 5470136831. The reversal of 5470136821 is 1286310745.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5425059025 + 45077796 = 73655^2 + 6714^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5470136821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5470136831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2735068410 + 2735068411.

It is an arithmetic number, because the mean of its divisors is an integer number (2735068411).

Almost surely, 2^5470136821 is an apocalyptic number.

It is an amenable number.

5470136821 is a deficient number, since it is larger than the sum of its proper divisors (1).

5470136821 is an equidigital number, since it uses as much as digits as its factorization.

5470136821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 5470136821 is about 73960.3733157155. The cubic root of 5470136821 is about 1761.9735975435.

The spelling of 5470136821 in words is "five billion, four hundred seventy million, one hundred thirty-six thousand, eight hundred twenty-one".