1006155 has 32 divisors (see below), whose sum is σ = 1857600. Its totient is φ = 516096.

The previous prime is 1006153. The next prime is 1006163. The reversal of 1006155 is 5516001.

It is not a de Polignac number, because 1006155 - 2¹ = 1006153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1006151) 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, 3787 + ... + 4043.

It is an arithmetic number, because the mean of its divisors is an integer number (58050).

2^1006155 is an apocalyptic number.

1006155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1006155 is a deficient number, since it is larger than the sum of its proper divisors (851445).

1006155 is a wasteful number, since it uses less digits than its factorization.

1006155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300 (or 294 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 1006155 is about 1003.0727790146. The cubic root of 1006155 is about 100.2047471665.

It can be divided in two parts, 10061 and 55, that multiplied together give a palindrome (553355).

The spelling of 1006155 in words is "one million, six thousand, one hundred fifty-five".