2151026 has 8 divisors (see below), whose sum is σ = 3234924. Its totient is φ = 1072720.

The previous prime is 2151013. The next prime is 2151031. The reversal of 2151026 is 6201512.

It can be written as a sum of positive squares in 2 ways, for example, as 2088025 + 63001 = 1445^2 + 251^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 2150995 and 2151013.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245 + ... + 2088.

2^2151026 is an apocalyptic number.

2151026 is a deficient number, since it is larger than the sum of its proper divisors (1083898).

2151026 is a wasteful number, since it uses less digits than its factorization.

2151026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2796.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 2151026 is about 1466.6376512281. The cubic root of 2151026 is about 129.0868153469.

Adding to 2151026 its reverse (6201512), we get a palindrome (8352538).

The spelling of 2151026 in words is "two million, one hundred fifty-one thousand, twenty-six".