121263725 has 12 divisors (see below), whose sum is σ = 164037120. Its totient is φ = 88191600.

The previous prime is 121263707. The next prime is 121263749. The reversal of 121263725 is 527362121.

It is a happy number.

It is not a de Polignac number, because 121263725 - 2⁸ = 121263469 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 220205 + ... + 220754.

It is an arithmetic number, because the mean of its divisors is an integer number (13669760).

Almost surely, 2^121263725 is an apocalyptic number.

It is an amenable number.

121263725 is a deficient number, since it is larger than the sum of its proper divisors (42773395).

121263725 is a wasteful number, since it uses less digits than its factorization.

121263725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440980 (or 440975 counting only the distinct ones).

The product of its digits is 5040, while the sum is 29.

The square root of 121263725 is about 11011.9809752832. The cubic root of 121263725 is about 494.9678243209.

It can be divided in two parts, 12126 and 3725, that added together give a palindrome (15851).

The spelling of 121263725 in words is "one hundred twenty-one million, two hundred sixty-three thousand, seven hundred twenty-five".