403121125 has 16 divisors (see below), whose sum is σ = 548832960. Its totient is φ = 293178000.

The previous prime is 403121113. The next prime is 403121129. The reversal of 403121125 is 521121304.

It is not a de Polignac number, because 403121125 - 2¹⁷ = 402990053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403121129) 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 15 ways as a sum of consecutive naturals, for example, 145215 + ... + 147964.

It is an arithmetic number, because the mean of its divisors is an integer number (34302060).

Almost surely, 2^403121125 is an apocalyptic number.

It is an amenable number.

403121125 is a deficient number, since it is larger than the sum of its proper divisors (145711835).

403121125 is a wasteful number, since it uses less digits than its factorization.

403121125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293205 (or 293195 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 403121125 is about 20077.8765062444. The cubic root of 403121125 is about 738.7177239552.

Adding to 403121125 its reverse (521121304), we get a palindrome (924242429).

The spelling of 403121125 in words is "four hundred three million, one hundred twenty-one thousand, one hundred twenty-five".