940121441 has 4 divisors (see below), whose sum is σ = 1074424512. Its totient is φ = 805818372.

The previous prime is 940121423. The next prime is 940121443. The reversal of 940121441 is 144121049.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-940121441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 940121441.

It is not an unprimeable number, because it can be changed into a prime (940121443) 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, 67151525 + ... + 67151538.

It is an arithmetic number, because the mean of its divisors is an integer number (268606128).

Almost surely, 2^940121441 is an apocalyptic number.

It is an amenable number.

940121441 is a deficient number, since it is larger than the sum of its proper divisors (134303071).

940121441 is a wasteful number, since it uses less digits than its factorization.

940121441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134303070.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 940121441 is about 30661.3998538879. The cubic root of 940121441 is about 979.6282919758.

The spelling of 940121441 in words is "nine hundred forty million, one hundred twenty-one thousand, four hundred forty-one".