1006156 has 6 divisors (see below), whose sum is σ = 1760780. Its totient is φ = 503076.

The previous prime is 1006153. The next prime is 1006163. The reversal of 1006156 is 6516001.

It is not an unprimeable number, because it can be changed into a prime (1006151) by changing a digit.

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 as a sum of consecutive naturals, namely, 125766 + ... + 125773.

2^1006156 is an apocalyptic number.

It is an amenable number.

1006156 is a deficient number, since it is larger than the sum of its proper divisors (754624).

1006156 is a wasteful number, since it uses less digits than its factorization.

1006156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251543 (or 251541 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 1006156 is about 1003.0732774828. The cubic root of 1006156 is about 100.2047803638.

The spelling of 1006156 in words is "one million, six thousand, one hundred fifty-six".