121453250 has 32 divisors (see below), whose sum is σ = 229497840. Its totient is φ = 48124800.

The previous prime is 121453249. The next prime is 121453259. The reversal of 121453250 is 52354121.

It can be written as a sum of positive squares in 8 ways, for example, as 17147881 + 104305369 = 4141^2 + 10213^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121453259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25022 + ... + 29478.

Almost surely, 2^121453250 is an apocalyptic number.

121453250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121453250 is a deficient number, since it is larger than the sum of its proper divisors (108044590).

121453250 is a wasteful number, since it uses less digits than its factorization.

121453250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4583 (or 4573 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 121453250 is about 11020.5830154307. The cubic root of 121453250 is about 495.2255544529.

The spelling of 121453250 in words is "one hundred twenty-one million, four hundred fifty-three thousand, two hundred fifty".