1156906 has 4 divisors (see below), whose sum is σ = 1735362. Its totient is φ = 578452.

The previous prime is 1156873. The next prime is 1156907. The reversal of 1156906 is 6096511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 826281 + 330625 = 909^2 + 575^2 .

It is not an unprimeable number, because it can be changed into a prime (1156907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 289225 + ... + 289228.

2^1156906 is an apocalyptic number.

1156906 is a deficient number, since it is larger than the sum of its proper divisors (578456).

1156906 is an equidigital number, since it uses as much as digits as its factorization.

1156906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578455.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 1156906 is about 1075.5956489313. The cubic root of 1156906 is about 104.9782570247.

It can be divided in two parts, 115 and 6906, that added together give a triangular number (7021 = T₁₁₈).

The spelling of 1156906 in words is "one million, one hundred fifty-six thousand, nine hundred six".