121502453 has 2 divisors, whose sum is σ = 121502454. Its totient is φ = 121502452.

The previous prime is 121502443. The next prime is 121502483. The reversal of 121502453 is 354205121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121374289 + 128164 = 11017^2 + 358^2 .

It is an emirp because it is prime and its reverse (354205121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121502453 - 2⁶ = 121502389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121502443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60751226 + 60751227.

It is an arithmetic number, because the mean of its divisors is an integer number (60751227).

Almost surely, 2^121502453 is an apocalyptic number.

It is an amenable number.

121502453 is a deficient number, since it is larger than the sum of its proper divisors (1).

121502453 is an equidigital number, since it uses as much as digits as its factorization.

121502453 is an evil number, because the sum of its binary digits is even.

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

The square root of 121502453 is about 11022.8151123023. The cubic root of 121502453 is about 495.2924204918.

Adding to 121502453 its reverse (354205121), we get a palindrome (475707574).

The spelling of 121502453 in words is "one hundred twenty-one million, five hundred two thousand, four hundred fifty-three".