1042420125 has 16 divisors (see below), whose sum is σ = 1734587712. Its totient is φ = 555957200.

The previous prime is 1042420117. The next prime is 1042420153. The reversal of 1042420125 is 5210242401.

It is not a de Polignac number, because 1042420125 - 2³ = 1042420117 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1389519 + ... + 1390268.

It is an arithmetic number, because the mean of its divisors is an integer number (108411732).

Almost surely, 2^1042420125 is an apocalyptic number.

1042420125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1042420125 is a deficient number, since it is larger than the sum of its proper divisors (692167587).

1042420125 is an equidigital number, since it uses as much as digits as its factorization.

1042420125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2779805 (or 2779795 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 1042420125 is about 32286.5316347235. The cubic root of 1042420125 is about 1013.9446835986.

Adding to 1042420125 its reverse (5210242401), we get a palindrome (6252662526).

The spelling of 1042420125 in words is "one billion, forty-two million, four hundred twenty thousand, one hundred twenty-five".