1244142201 has 16 divisors (see below), whose sum is σ = 1667016000. Its totient is φ = 825359808.

The previous prime is 1244142169. The next prime is 1244142203. The reversal of 1244142201 is 1022414421.

It is not a de Polignac number, because 1244142201 - 2⁵ = 1244142169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1244142203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 637375 + ... + 639323.

It is an arithmetic number, because the mean of its divisors is an integer number (104188500).

Almost surely, 2^1244142201 is an apocalyptic number.

It is an amenable number.

1244142201 is a deficient number, since it is larger than the sum of its proper divisors (422873799).

1244142201 is a wasteful number, since it uses less digits than its factorization.

1244142201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2888.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 1244142201 is about 35272.3999892267. The cubic root of 1244142201 is about 1075.5320102576.

Adding to 1244142201 its reverse (1022414421), we get a palindrome (2266556622).

The spelling of 1244142201 in words is "one billion, two hundred forty-four million, one hundred forty-two thousand, two hundred one".