2151426 has 8 divisors (see below), whose sum is σ = 4302864. Its totient is φ = 717140.

The previous prime is 2151421. The next prime is 2151433. The reversal of 2151426 is 6241512.

It is a sphenic number, since it is the product of 3 distinct primes.

2151426 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (2151421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179280 + ... + 179291.

It is an arithmetic number, because the mean of its divisors is an integer number (537858).

2^2151426 is an apocalyptic number.

2151426 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2151426 is a wasteful number, since it uses less digits than its factorization.

2151426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358576.

The product of its digits is 480, while the sum is 21.

The square root of 2151426 is about 1466.7740112233. The cubic root of 2151426 is about 129.0948164165.

Adding to 2151426 its reverse (6241512), we get a palindrome (8392938).

The spelling of 2151426 in words is "two million, one hundred fifty-one thousand, four hundred twenty-six".