29494284121 has 9 divisors (see below), whose sum is σ = 29652265279. Its totient is φ = 29337142936.

The previous prime is 29494284101. The next prime is 29494284137. The reversal of 29494284121 is 12148249492.

The square root of 29494284121 is 171739.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 6863294025 + 22630990096 = 82845^2 + 150436^2 .

It is a de Polignac number, because none of the positive numbers 2^k-29494284121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29494284101) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 45167031 + ... + 45167683.

Almost surely, 2^29494284121 is an apocalyptic number.

29494284121 is the 171739-th square number.

29494284121 is the 85870-th centered octagonal number.

It is an amenable number.

29494284121 is a deficient number, since it is larger than the sum of its proper divisors (157981158).

29494284121 is an frugal number, since it uses more digits than its factorization.

29494284121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1832 (or 916 counting only the distinct ones).

The product of its digits is 331776, while the sum is 46.

The spelling of 29494284121 in words is "twenty-nine billion, four hundred ninety-four million, two hundred eighty-four thousand, one hundred twenty-one".