121629453 has 8 divisors (see below), whose sum is σ = 176915616. Its totient is φ = 73714800.

The previous prime is 121629437. The next prime is 121629463. The reversal of 121629453 is 354926121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121629453 - 2⁴ = 121629437 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 3685741 = 121629453 / (1 + 2 + 1 + 6 + 2 + 9 + 4 + 5 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121629433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1842838 + ... + 1842903.

It is an arithmetic number, because the mean of its divisors is an integer number (22114452).

Almost surely, 2^121629453 is an apocalyptic number.

It is an amenable number.

121629453 is a deficient number, since it is larger than the sum of its proper divisors (55286163).

121629453 is a wasteful number, since it uses less digits than its factorization.

121629453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3685755.

The product of its digits is 12960, while the sum is 33.

The square root of 121629453 is about 11028.5743865651. The cubic root of 121629453 is about 495.4649279392.

The spelling of 121629453 in words is "one hundred twenty-one million, six hundred twenty-nine thousand, four hundred fifty-three".