1266045 has 16 divisors (see below), whose sum is σ = 2210112. Its totient is φ = 613760.

The previous prime is 1266043. The next prime is 1266047. The reversal of 1266045 is 5406621.

It is an interprime number because it is at equal distance from previous prime (1266043) and next prime (1266047).

It is not a de Polignac number, because 1266045 - 2¹ = 1266043 is a prime.

It is a super-4 number, since 4×1266045⁴ (a number of 26 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1266043) 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, 3672 + ... + 4001.

It is an arithmetic number, because the mean of its divisors is an integer number (138132).

2^1266045 is an apocalyptic number.

1266045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1266045 is a deficient number, since it is larger than the sum of its proper divisors (944067).

1266045 is a wasteful number, since it uses less digits than its factorization.

1266045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7692.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1266045 is about 1125.1866511828. The cubic root of 1266045 is about 108.1806817795.

The spelling of 1266045 in words is "one million, two hundred sixty-six thousand, forty-five".