121151453 has 4 divisors (see below), whose sum is σ = 121964700. Its totient is φ = 120338208.

The previous prime is 121151341. The next prime is 121151461. The reversal of 121151453 is 354151121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 354151121 = 4943 ⋅71647.

It can be written as a sum of positive squares in 2 ways, for example, as 76702564 + 44448889 = 8758^2 + 6667^2 .

It is a cyclic number.

It is not a de Polignac number, because 121151453 - 2¹⁸ = 120889309 is a prime.

It is a super-2 number, since 2×121151453² = 29355349128022418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121151483) 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, 406400 + ... + 406697.

It is an arithmetic number, because the mean of its divisors is an integer number (30491175).

Almost surely, 2^121151453 is an apocalyptic number.

It is an amenable number.

121151453 is a deficient number, since it is larger than the sum of its proper divisors (813247).

121151453 is an equidigital number, since it uses as much as digits as its factorization.

121151453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813246.

The product of its digits is 600, while the sum is 23.

The square root of 121151453 is about 11006.8820744114. The cubic root of 121151453 is about 494.8150218606.

The spelling of 121151453 in words is "one hundred twenty-one million, one hundred fifty-one thousand, four hundred fifty-three".