2154725 has 12 divisors (see below), whose sum is σ = 2708160. Its totient is φ = 1700400.

The previous prime is 2154707. The next prime is 2154727. The reversal of 2154725 is 5274512.

It is a de Polignac number, because none of the positive numbers 2^k-2154725 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2154694 and 2154703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154727) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1430 + ... + 2520.

It is an arithmetic number, because the mean of its divisors is an integer number (225680).

2^2154725 is an apocalyptic number.

2154725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2154725 is a deficient number, since it is larger than the sum of its proper divisors (553435).

2154725 is a wasteful number, since it uses less digits than its factorization.

2154725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1180 (or 1175 counting only the distinct ones).

The product of its digits is 2800, while the sum is 26.

The square root of 2154725 is about 1467.8981572303. The cubic root of 2154725 is about 129.1607674494.

The spelling of 2154725 in words is "two million, one hundred fifty-four thousand, seven hundred twenty-five".