1542156 has 48 divisors (see below), whose sum is σ = 4488960. Its totient is φ = 400320.

The previous prime is 1542137. The next prime is 1542179. The reversal of 1542156 is 6512451.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90 + ... + 1758.

It is an arithmetic number, because the mean of its divisors is an integer number (93520).

2^1542156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1542156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2244480).

1542156 is an abundant number, since it is smaller than the sum of its proper divisors (2946804).

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

1542156 is a wasteful number, since it uses less digits than its factorization.

1542156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694 (or 1692 counting only the distinct ones).

The product of its digits is 1200, while the sum is 24.

The square root of 1542156 is about 1241.8357379299. The cubic root of 1542156 is about 115.5339005827.

The spelling of 1542156 in words is "one million, five hundred forty-two thousand, one hundred fifty-six".