2551147 has 8 divisors (see below), whose sum is σ = 2647040. Its totient is φ = 2457000.

The previous prime is 2551127. The next prime is 2551169. The reversal of 2551147 is 7411552.

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 2551147 - 2¹⁵ = 2518379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2551127) 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, 3022 + ... + 3772.

It is an arithmetic number, because the mean of its divisors is an integer number (330880).

2^2551147 is an apocalyptic number.

2551147 is a deficient number, since it is larger than the sum of its proper divisors (95893).

2551147 is an equidigital number, since it uses as much as digits as its factorization.

2551147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873.

The product of its digits is 1400, while the sum is 25.

The square root of 2551147 is about 1597.2310415215. The cubic root of 2551147 is about 136.6402017630.

Adding to 2551147 its reverse (7411552), we get a palindrome (9962699).

The spelling of 2551147 in words is "two million, five hundred fifty-one thousand, one hundred forty-seven".