4542156 has 36 divisors (see below), whose sum is σ = 11909352. Its totient is φ = 1513728.

The previous prime is 4542149. The next prime is 4542173. The reversal of 4542156 is 6512454.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×4542156² = 41262362256672, which contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1365 + ... + 3308.

Almost surely, 2^4542156 is an apocalyptic number.

It is an amenable number.

4542156 is an abundant number, since it is smaller than the sum of its proper divisors (7367196).

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

4542156 is a wasteful number, since it uses less digits than its factorization.

4542156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4692 (or 4678 counting only the distinct ones).

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

The square root of 4542156 is about 2131.2334456835. The cubic root of 4542156 is about 165.6103018166.

The spelling of 4542156 in words is "four million, five hundred forty-two thousand, one hundred fifty-six".