1253766 has 8 divisors (see below), whose sum is σ = 2507544. Its totient is φ = 417920.

The previous prime is 1253761. The next prime is 1253783. The reversal of 1253766 is 6673521.

It is a sphenic number, since it is the product of 3 distinct primes.

1253766 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104475 + ... + 104486.

It is an arithmetic number, because the mean of its divisors is an integer number (313443).

2^1253766 is an apocalyptic number.

1253766 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1253766 is a wasteful number, since it uses less digits than its factorization.

1253766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208966.

The product of its digits is 7560, while the sum is 30.

The square root of 1253766 is about 1119.7169285136. The cubic root of 1253766 is about 107.8298073874.

Subtracting from 1253766 its sum of digits (30), we obtain a triangular number (1253736 = T₁₅₈₃).

The spelling of 1253766 in words is "one million, two hundred fifty-three thousand, seven hundred sixty-six".