945091 has 16 divisors (see below), whose sum is σ = 1149120. Its totient is φ = 760320.

The previous prime is 945089. The next prime is 945103. The reversal of 945091 is 190549.

945091 = T₇₁ + T₇₂ + ... + T₁₈₁.

It is a cyclic number.

It is not a de Polignac number, because 945091 - 2¹ = 945089 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (945031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10575 + ... + 10663.

It is an arithmetic number, because the mean of its divisors is an integer number (71820).

2⁹⁴⁵⁰⁹¹ is an apocalyptic number.

945091 is a deficient number, since it is larger than the sum of its proper divisors (204029).

945091 is a wasteful number, since it uses less digits than its factorization.

945091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174.

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

The square root of 945091 is about 972.1579089839. The cubic root of 945091 is about 98.1351391203.

The spelling of 945091 in words is "nine hundred forty-five thousand, ninety-one".