2749151 has 4 divisors (see below), whose sum is σ = 2774952. Its totient is φ = 2723352.

The previous prime is 2749147. The next prime is 2749157. The reversal of 2749151 is 1519472.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2749151 - 2² = 2749147 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2749157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12740 + ... + 12953.

It is an arithmetic number, because the mean of its divisors is an integer number (693738).

2^2749151 is an apocalyptic number.

2749151 is a deficient number, since it is larger than the sum of its proper divisors (25801).

2749151 is a wasteful number, since it uses less digits than its factorization.

2749151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25800.

The product of its digits is 2520, while the sum is 29.

The square root of 2749151 is about 1658.0563922859. The cubic root of 2749151 is about 140.0875472828.

It can be divided in two parts, 27491 and 51, that multiplied together give a palindrome (1402041).

The spelling of 2749151 in words is "two million, seven hundred forty-nine thousand, one hundred fifty-one".