2949155 has 24 divisors (see below), whose sum is σ = 4088880. Its totient is φ = 2022720.

The previous prime is 2949151. The next prime is 2949169. The reversal of 2949155 is 5519492.

It is not a de Polignac number, because 2949155 - 2² = 2949151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2949151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68564 + ... + 68606.

It is an arithmetic number, because the mean of its divisors is an integer number (170370).

2^2949155 is an apocalyptic number.

2949155 is a deficient number, since it is larger than the sum of its proper divisors (1139725).

2949155 is a wasteful number, since it uses less digits than its factorization.

2949155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131 (or 88 counting only the distinct ones).

The product of its digits is 16200, while the sum is 35.

The square root of 2949155 is about 1717.3103971036. The cubic root of 2949155 is about 143.4055191950.

It can be divided in two parts, 294 and 9155, that added together give a palindrome (9449).

The spelling of 2949155 in words is "two million, nine hundred forty-nine thousand, one hundred fifty-five".