2521154 has 4 divisors (see below), whose sum is σ = 3781734. Its totient is φ = 1260576.

The previous prime is 2521153. The next prime is 2521171. The reversal of 2521154 is 4511252.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2486929 + 34225 = 1577^2 + 185^2 .

It is not an unprimeable number, because it can be changed into a prime (2521153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 630287 + ... + 630290.

2^2521154 is an apocalyptic number.

2521154 is a deficient number, since it is larger than the sum of its proper divisors (1260580).

2521154 is a wasteful number, since it uses less digits than its factorization.

2521154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1260579.

The product of its digits is 400, while the sum is 20.

The square root of 2521154 is about 1587.8142208709. The cubic root of 2521154 is about 136.1026114303.

The spelling of 2521154 in words is "two million, five hundred twenty-one thousand, one hundred fifty-four".