1244420051 has 8 divisors (see below), whose sum is σ = 1422908160. Its totient is φ = 1066110408.

The previous prime is 1244419963. The next prime is 1244420059. The reversal of 1244420051 is 1500244421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1244420051 - 2²² = 1240225747 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1244419999 and 1244420026.

It is not an unprimeable number, because it can be changed into a prime (1244420059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29321 + ... + 57866.

It is an arithmetic number, because the mean of its divisors is an integer number (177863520).

Almost surely, 2^1244420051 is an apocalyptic number.

1244420051 is a deficient number, since it is larger than the sum of its proper divisors (178488109).

1244420051 is an equidigital number, since it uses as much as digits as its factorization.

1244420051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89233.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 1244420051 is about 35276.3384012570. The cubic root of 1244420051 is about 1075.6120692534.

Adding to 1244420051 its reverse (1500244421), we get a palindrome (2744664472).

The spelling of 1244420051 in words is "one billion, two hundred forty-four million, four hundred twenty thousand, fifty-one".