2151474 has 16 divisors (see below), whose sum is σ = 4634112. Its totient is φ = 661968.

The previous prime is 2151473. The next prime is 2151497. The reversal of 2151474 is 4741512.

It is not an unprimeable number, because it can be changed into a prime (2151473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13714 + ... + 13869.

It is an arithmetic number, because the mean of its divisors is an integer number (289632).

2^2151474 is an apocalyptic number.

2151474 is an abundant number, since it is smaller than the sum of its proper divisors (2482638).

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

2151474 is a wasteful number, since it uses less digits than its factorization.

2151474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27601.

The product of its digits is 1120, while the sum is 24.

The square root of 2151474 is about 1466.7903735708. The cubic root of 2151474 is about 129.0957764781.

Adding to 2151474 its reverse (4741512), we get a palindrome (6892986).

The spelling of 2151474 in words is "two million, one hundred fifty-one thousand, four hundred seventy-four".