121454513 has 4 divisors (see below), whose sum is σ = 126735168. Its totient is φ = 116173860.

The previous prime is 121454503. The next prime is 121454537. The reversal of 121454513 is 315454121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 315454121 = 12647 ⋅24943.

It is a cyclic number.

It is not a de Polignac number, because 121454513 - 2¹⁰ = 121453489 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121454503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2640293 + ... + 2640338.

It is an arithmetic number, because the mean of its divisors is an integer number (31683792).

Almost surely, 2^121454513 is an apocalyptic number.

It is an amenable number.

121454513 is a deficient number, since it is larger than the sum of its proper divisors (5280655).

121454513 is an equidigital number, since it uses as much as digits as its factorization.

121454513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5280654.

The product of its digits is 2400, while the sum is 26.

The square root of 121454513 is about 11020.6403171504. The cubic root of 121454513 is about 495.2272710742.

The spelling of 121454513 in words is "one hundred twenty-one million, four hundred fifty-four thousand, five hundred thirteen".