4156725 has 24 divisors (see below), whose sum is σ = 7236640. Its totient is φ = 2099520.

The previous prime is 4156709. The next prime is 4156739. The reversal of 4156725 is 5276514.

It is not a de Polignac number, because 4156725 - 2⁴ = 4156709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4156692 and 4156701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34 + ... + 2883.

Almost surely, 2^4156725 is an apocalyptic number.

It is an amenable number.

4156725 is a deficient number, since it is larger than the sum of its proper divisors (3079915).

4156725 is a wasteful number, since it uses less digits than its factorization.

4156725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2949 (or 2944 counting only the distinct ones).

The product of its digits is 8400, while the sum is 30.

The square root of 4156725 is about 2038.8047969337. The cubic root of 4156725 is about 160.7868145298.

It can be divided in two parts, 415 and 6725, that added together give a triangular number (7140 = T₁₁₉).

The spelling of 4156725 in words is "four million, one hundred fifty-six thousand, seven hundred twenty-five".