1421041125 has 32 divisors (see below), whose sum is σ = 2702419200. Its totient is φ = 649617600.

The previous prime is 1421041121. The next prime is 1421041133. The reversal of 1421041125 is 5211401241.

It is not a de Polignac number, because 1421041125 - 2² = 1421041121 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421041121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 268050 + ... + 273299.

It is an arithmetic number, because the mean of its divisors is an integer number (84450600).

Almost surely, 2^1421041125 is an apocalyptic number.

1421041125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1421041125 is a deficient number, since it is larger than the sum of its proper divisors (1281378075).

1421041125 is an equidigital number, since it uses as much as digits as its factorization.

1421041125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541374 (or 541364 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 1421041125 is about 37696.6991260508. The cubic root of 1421041125 is about 1124.2654958607.

Adding to 1421041125 its reverse (5211401241), we get a palindrome (6632442366).

The spelling of 1421041125 in words is "one billion, four hundred twenty-one million, forty-one thousand, one hundred twenty-five".