121047450 has 48 divisors (see below), whose sum is σ = 310560480. Its totient is φ = 31165120.

The previous prime is 121047391. The next prime is 121047469. The reversal of 121047450 is 54740121.

It is a self number, because there is not a number n which added to its sum of digits gives 121047450.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9564 + ... + 18263.

It is an arithmetic number, because the mean of its divisors is an integer number (6470010).

Almost surely, 2^121047450 is an apocalyptic number.

121047450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121047450 is an abundant number, since it is smaller than the sum of its proper divisors (189513030).

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

121047450 is a wasteful number, since it uses less digits than its factorization.

121047450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27871 (or 27866 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 121047450 is about 11002.1566067749. The cubic root of 121047450 is about 494.6733892774.

Adding to 121047450 its reverse (54740121), we get a palindrome (175787571).

The spelling of 121047450 in words is "one hundred twenty-one million, forty-seven thousand, four hundred fifty".