121145750 has 32 divisors (see below), whose sum is σ = 247407264. Its totient is φ = 44052000.

The previous prime is 121145747. The next prime is 121145779. The reversal of 121145750 is 57541121.

It is a super-3 number, since 3×121145750³ (a number of 25 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 19277 + ... + 24776.

It is an arithmetic number, because the mean of its divisors is an integer number (7731477).

Almost surely, 2^121145750 is an apocalyptic number.

121145750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121145750 is an abundant number, since it is smaller than the sum of its proper divisors (126261514).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121145750 is a wasteful number, since it uses less digits than its factorization.

121145750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44081 (or 44071 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 26.

The square root of 121145750 is about 11006.6230061722. The cubic root of 121145750 is about 494.8072575450.

Adding to 121145750 its reverse (57541121), we get a palindrome (178686871).

The spelling of 121145750 in words is "one hundred twenty-one million, one hundred forty-five thousand, seven hundred fifty".