2730149 has 8 divisors (see below), whose sum is σ = 2962008. Its totient is φ = 2506240.

The previous prime is 2730121. The next prime is 2730157. The reversal of 2730149 is 9410372.

It can be written as a sum of positive squares in 4 ways, for example, as 465124 + 2265025 = 682^2 + 1505^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2730149 - 2²⁰ = 1681573 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2730109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1262 + ... + 2655.

It is an arithmetic number, because the mean of its divisors is an integer number (370251).

2^2730149 is an apocalyptic number.

It is an amenable number.

2730149 is a deficient number, since it is larger than the sum of its proper divisors (231859).

2730149 is a wasteful number, since it uses less digits than its factorization.

2730149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3975.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 2730149 is about 1652.3162530218. The cubic root of 2730149 is about 139.7640413096.

The spelling of 2730149 in words is "two million, seven hundred thirty thousand, one hundred forty-nine".