1240971 has 8 divisors (see below), whose sum is σ = 1660560. Its totient is φ = 824352.

The previous prime is 1240957. The next prime is 1240973. The reversal of 1240971 is 1790421.

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

It is a de Polignac number, because none of the positive numbers 2^k-1240971 is a prime.

It is a super-3 number, since 3×1240971³ = 5733319611252055833, which contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1240973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 565 + ... + 1673.

It is an arithmetic number, because the mean of its divisors is an integer number (207570).

2^1240971 is an apocalyptic number.

1240971 is a deficient number, since it is larger than the sum of its proper divisors (419589).

1240971 is a wasteful number, since it uses less digits than its factorization.

1240971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1485.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 1240971 is about 1113.9887791176. The cubic root of 1240971 is about 107.4617422903.

It can be divided in two parts, 1240 and 971, that added together give a triangular number (2211 = T₆₆).

The spelling of 1240971 in words is "one million, two hundred forty thousand, nine hundred seventy-one".