2509122 has 32 divisors (see below), whose sum is σ = 6257664. Its totient is φ = 651600.

The previous prime is 2509103. The next prime is 2509123. The reversal of 2509122 is 2219052.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (2509123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2254 + ... + 3177.

It is an arithmetic number, because the mean of its divisors is an integer number (195552).

2^2509122 is an apocalyptic number.

2509122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2509122 is an abundant number, since it is smaller than the sum of its proper divisors (3748542).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2509122 is a wasteful number, since it uses less digits than its factorization.

2509122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5454.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 2509122 is about 1584.0208331963. The cubic root of 2509122 is about 135.8857532465.

The spelling of 2509122 in words is "two million, five hundred nine thousand, one hundred twenty-two".