121477453 has 2 divisors, whose sum is σ = 121477454. Its totient is φ = 121477452.

The previous prime is 121477417. The next prime is 121477457. The reversal of 121477453 is 354774121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110208004 + 11269449 = 10498^2 + 3357^2 .

It is a cyclic number.

It is not a de Polignac number, because 121477453 - 2²¹ = 119380301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121477457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60738726 + 60738727.

It is an arithmetic number, because the mean of its divisors is an integer number (60738727).

Almost surely, 2^121477453 is an apocalyptic number.

It is an amenable number.

121477453 is a deficient number, since it is larger than the sum of its proper divisors (1).

121477453 is an equidigital number, since it uses as much as digits as its factorization.

121477453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23520, while the sum is 34.

The square root of 121477453 is about 11021.6810423819. The cubic root of 121477453 is about 495.2584481740.

It can be divided in two parts, 12147 and 7453, that added together give a square (19600 = 140²).

The spelling of 121477453 in words is "one hundred twenty-one million, four hundred seventy-seven thousand, four hundred fifty-three".