2151004 has 12 divisors (see below), whose sum is σ = 3786328. Its totient is φ = 1069200.

The previous prime is 2151001. The next prime is 2151007. The reversal of 2151004 is 4001512.

It is an interprime number because it is at equal distance from previous prime (2151001) and next prime (2151007).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151001) 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, 762 + ... + 2209.

2^2151004 is an apocalyptic number.

It is an amenable number.

2151004 is a deficient number, since it is larger than the sum of its proper divisors (1635324).

2151004 is a wasteful number, since it uses less digits than its factorization.

2151004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3156 (or 3154 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 2151004 is about 1466.6301510606. The cubic root of 2151004 is about 129.0863752593.

Adding to 2151004 its reverse (4001512), we get a palindrome (6152516).

The spelling of 2151004 in words is "two million, one hundred fifty-one thousand, four".