2730157 has 2 divisors, whose sum is σ = 2730158. Its totient is φ = 2730156.

The previous prime is 2730121. The next prime is 2730173. The reversal of 2730157 is 7510372.

2730157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2725801 + 4356 = 1651^2 + 66^2 .

It is a cyclic number.

It is not a de Polignac number, because 2730157 - 2¹⁵ = 2697389 is a prime.

It is a super-3 number, since 3×2730157³ = 61049782553337539679, which contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2730197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1365078 + 1365079.

It is an arithmetic number, because the mean of its divisors is an integer number (1365079).

2^2730157 is an apocalyptic number.

It is an amenable number.

2730157 is a deficient number, since it is larger than the sum of its proper divisors (1).

2730157 is an equidigital number, since it uses as much as digits as its factorization.

2730157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1470, while the sum is 25.

The square root of 2730157 is about 1652.3186738641. The cubic root of 2730157 is about 139.7641778237.

The spelling of 2730157 in words is "two million, seven hundred thirty thousand, one hundred fifty-seven".