748916121 has 4 divisors (see below), whose sum is σ = 998554832. Its totient is φ = 499277412.

The previous prime is 748916101. The next prime is 748916143. The reversal of 748916121 is 121619847.

748916121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 748916121 - 2⁵ = 748916089 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 748916121.

It is not an unprimeable number, because it can be changed into a prime (748916101) 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, 124819351 + ... + 124819356.

It is an arithmetic number, because the mean of its divisors is an integer number (249638708).

Almost surely, 2^748916121 is an apocalyptic number.

It is an amenable number.

748916121 is a deficient number, since it is larger than the sum of its proper divisors (249638711).

748916121 is a wasteful number, since it uses less digits than its factorization.

748916121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249638710.

The product of its digits is 24192, while the sum is 39.

The square root of 748916121 is about 27366.3318879239. The cubic root of 748916121 is about 908.1224101077.

The spelling of 748916121 in words is "seven hundred forty-eight million, nine hundred sixteen thousand, one hundred twenty-one".