1200432145 has 16 divisors (see below), whose sum is σ = 1593613440. Its totient is φ = 860742400.

The previous prime is 1200432091. The next prime is 1200432187. The reversal of 1200432145 is 5412340021.

It is not a de Polignac number, because 1200432145 - 2⁷ = 1200432017 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149800 + ... + 157609.

It is an arithmetic number, because the mean of its divisors is an integer number (99600840).

Almost surely, 2^1200432145 is an apocalyptic number.

It is an amenable number.

1200432145 is a deficient number, since it is larger than the sum of its proper divisors (393181295).

1200432145 is a wasteful number, since it uses less digits than its factorization.

1200432145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307496.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1200432145 is about 34647.2530657194. The cubic root of 1200432145 is about 1062.7861157029.

Adding to 1200432145 its reverse (5412340021), we get a palindrome (6612772166).

The spelling of 1200432145 in words is "one billion, two hundred million, four hundred thirty-two thousand, one hundred forty-five".