121450761 has 12 divisors (see below), whose sum is σ = 180170692. Its totient is φ = 78778656.

The previous prime is 121450759. The next prime is 121450781. The reversal of 121450761 is 167054121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 107433225 + 14017536 = 10365^2 + 3744^2 .

It is not a de Polignac number, because 121450761 - 2¹ = 121450759 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121450711) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 182026 + ... + 182691.

Almost surely, 2^121450761 is an apocalyptic number.

It is an amenable number.

121450761 is a deficient number, since it is larger than the sum of its proper divisors (58719931).

121450761 is a wasteful number, since it uses less digits than its factorization.

121450761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364760 (or 364757 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 121450761 is about 11020.4700897920. The cubic root of 121450761 is about 495.2221714644. Note that the first 3 decimals are identical.

The spelling of 121450761 in words is "one hundred twenty-one million, four hundred fifty thousand, seven hundred sixty-one".