4156245 has 32 divisors (see below), whose sum is σ = 7827840. Its totient is φ = 2085120.

The previous prime is 4156219. The next prime is 4156249. The reversal of 4156245 is 5426514.

4156245 is a `hidden beast` number, since 415 + 6 + 245 = 666.

It is not a de Polignac number, because 4156245 - 2⁵ = 4156213 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4156249) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1390 + ... + 3200.

It is an arithmetic number, because the mean of its divisors is an integer number (244620).

Almost surely, 2^4156245 is an apocalyptic number.

4156245 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4156245 is a deficient number, since it is larger than the sum of its proper divisors (3671595).

4156245 is a wasteful number, since it uses less digits than its factorization.

4156245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1842 (or 1836 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 4156245 is about 2038.6870775085. The cubic root of 4156245 is about 160.7806253110.

The spelling of 4156245 in words is "four million, one hundred fifty-six thousand, two hundred forty-five".