121024144 has 10 divisors (see below), whose sum is σ = 234484310. Its totient is φ = 60512064.

The previous prime is 121024133. The next prime is 121024157. The reversal of 121024144 is 441420121.

It can be written as a sum of positive squares in only one way, i.e., 118810000 + 2214144 = 10900^2 + 1488^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3781989 + ... + 3782020.

It is an arithmetic number, because the mean of its divisors is an integer number (23448431).

Almost surely, 2^121024144 is an apocalyptic number.

It is an amenable number.

121024144 is a deficient number, since it is larger than the sum of its proper divisors (113460166).

121024144 is an equidigital number, since it uses as much as digits as its factorization.

121024144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7564017 (or 7564011 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 121024144 is about 11001.0973998052. The cubic root of 121024144 is about 494.6416397500.

Adding to 121024144 its reverse (441420121), we get a palindrome (562444265).

The spelling of 121024144 in words is "one hundred twenty-one million, twenty-four thousand, one hundred forty-four".