1200214129 has 4 divisors (see below), whose sum is σ = 1252397376. Its totient is φ = 1148030884.

The previous prime is 1200214123. The next prime is 1200214133. The reversal of 1200214129 is 9214120021.

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.

It is a cyclic number.

It is not a de Polignac number, because 1200214129 - 2²⁷ = 1065996401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1200214123) 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, 26091589 + ... + 26091634.

It is an arithmetic number, because the mean of its divisors is an integer number (313099344).

Almost surely, 2^1200214129 is an apocalyptic number.

It is an amenable number.

1200214129 is a deficient number, since it is larger than the sum of its proper divisors (52183247).

1200214129 is an equidigital number, since it uses as much as digits as its factorization.

1200214129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52183246.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 1200214129 is about 34644.1066994085. The cubic root of 1200214129 is about 1062.7217726503.

The spelling of 1200214129 in words is "one billion, two hundred million, two hundred fourteen thousand, one hundred twenty-nine".