121407401 has 2 divisors, whose sum is σ = 121407402. Its totient is φ = 121407400.

The previous prime is 121407389. The next prime is 121407463. The reversal of 121407401 is 104704121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63282025 + 58125376 = 7955^2 + 7624^2 .

It is a cyclic number.

It is not a de Polignac number, because 121407401 - 2¹⁰ = 121406377 is a prime.

It is not a weakly prime, because it can be changed into another prime (121407491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60703700 + 60703701.

It is an arithmetic number, because the mean of its divisors is an integer number (60703701).

Almost surely, 2^121407401 is an apocalyptic number.

It is an amenable number.

121407401 is a deficient number, since it is larger than the sum of its proper divisors (1).

121407401 is an equidigital number, since it uses as much as digits as its factorization.

121407401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 121407401 is about 11018.5026659705. The cubic root of 121407401 is about 495.1632301863.

The spelling of 121407401 in words is "one hundred twenty-one million, four hundred seven thousand, four hundred one".