121629454 has 4 divisors (see below), whose sum is σ = 182444184. Its totient is φ = 60814726.

The previous prime is 121629437. The next prime is 121629463. The reversal of 121629454 is 454926121.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30407362 + ... + 30407365.

It is an arithmetic number, because the mean of its divisors is an integer number (45611046).

Almost surely, 2^121629454 is an apocalyptic number.

121629454 is a deficient number, since it is larger than the sum of its proper divisors (60814730).

121629454 is an equidigital number, since it uses as much as digits as its factorization.

121629454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60814729.

The product of its digits is 17280, while the sum is 34.

The square root of 121629454 is about 11028.5744319019. The cubic root of 121629454 is about 495.4649292970.

The spelling of 121629454 in words is "one hundred twenty-one million, six hundred twenty-nine thousand, four hundred fifty-four".