2151492 has 36 divisors (see below), whose sum is σ = 5841360. Its totient is φ = 614544.

The previous prime is 2151473. The next prime is 2151497. The reversal of 2151492 is 2941512.

It is not an unprimeable number, because it can be changed into a prime (2151497) 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 11 ways as a sum of consecutive naturals, for example, 1242 + ... + 2417.

It is an arithmetic number, because the mean of its divisors is an integer number (162260).

2^2151492 is an apocalyptic number.

It is an amenable number.

2151492 is an abundant number, since it is smaller than the sum of its proper divisors (3689868).

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

2151492 is a wasteful number, since it uses less digits than its factorization.

2151492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3680 (or 3671 counting only the distinct ones).

The product of its digits is 720, while the sum is 24.

The square root of 2151492 is about 1466.7965094041. The cubic root of 2151492 is about 129.0961364976.

The spelling of 2151492 in words is "two million, one hundred fifty-one thousand, four hundred ninety-two".