1200115029 has 4 divisors (see below), whose sum is σ = 1600153376. Its totient is φ = 800076684.

The previous prime is 1200115003. The next prime is 1200115073. The reversal of 1200115029 is 9205110021.

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 not a de Polignac number, because 1200115029 - 2⁷ = 1200114901 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1200114996 and 1200115014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200115429) 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, 200019169 + ... + 200019174.

It is an arithmetic number, because the mean of its divisors is an integer number (400038344).

Almost surely, 2^1200115029 is an apocalyptic number.

It is an amenable number.

1200115029 is a deficient number, since it is larger than the sum of its proper divisors (400038347).

1200115029 is an equidigital number, since it uses as much as digits as its factorization.

1200115029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400038346.

The product of its (nonzero) digits is 180, while the sum is 21.

The square root of 1200115029 is about 34642.6764121943. The cubic root of 1200115029 is about 1062.6925226957.

The spelling of 1200115029 in words is "one billion, two hundred million, one hundred fifteen thousand, twenty-nine".