2979155 has 8 divisors (see below), whose sum is σ = 3628752. Its totient is φ = 2347488.

The previous prime is 2979149. The next prime is 2979173. The reversal of 2979155 is 5519792.

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 2979155 - 2⁴ = 2979139 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4112 + ... + 4781.

It is an arithmetic number, because the mean of its divisors is an integer number (453594).

2^2979155 is an apocalyptic number.

2979155 is a deficient number, since it is larger than the sum of its proper divisors (649597).

2979155 is an equidigital number, since it uses as much as digits as its factorization.

2979155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8965.

The product of its digits is 28350, while the sum is 38.

The square root of 2979155 is about 1726.0228851322. The cubic root of 2979155 is about 143.8901393287.

The spelling of 2979155 in words is "two million, nine hundred seventy-nine thousand, one hundred fifty-five".