1202112451 has 16 divisors (see below), whose sum is σ = 1267861248. Its totient is φ = 1138176000.

The previous prime is 1202112361. The next prime is 1202112491. The reversal of 1202112451 is 1542112021.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1202112451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1202112491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 750051 + ... + 751651.

It is an arithmetic number, because the mean of its divisors is an integer number (79241328).

Almost surely, 2^1202112451 is an apocalyptic number.

1202112451 is a deficient number, since it is larger than the sum of its proper divisors (65748797).

1202112451 is a wasteful number, since it uses less digits than its factorization.

1202112451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2142.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 1202112451 is about 34671.4933482825. The cubic root of 1202112451 is about 1063.2817631284.

Adding to 1202112451 its reverse (1542112021), we get a palindrome (2744224472).

The spelling of 1202112451 in words is "one billion, two hundred two million, one hundred twelve thousand, four hundred fifty-one".