3155420287 has 2 divisors, whose sum is σ = 3155420288. Its totient is φ = 3155420286.

The previous prime is 3155420267. The next prime is 3155420297. The reversal of 3155420287 is 7820245513.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3155420287 - 2¹⁵ = 3155387519 is a prime.

It is a super-2 number, since 2×3155420287² = 19913354375222324738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3155420237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1577710143 + 1577710144.

It is an arithmetic number, because the mean of its divisors is an integer number (1577710144).

Almost surely, 2^3155420287 is an apocalyptic number.

3155420287 is a deficient number, since it is larger than the sum of its proper divisors (1).

3155420287 is an equidigital number, since it uses as much as digits as its factorization.

3155420287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 3155420287 is about 56173.1278014675. The cubic root of 3155420287 is about 1466.7375295709.

The spelling of 3155420287 in words is "three billion, one hundred fifty-five million, four hundred twenty thousand, two hundred eighty-seven".