1244069271 has 6 divisors (see below), whose sum is σ = 1796988960. Its totient is φ = 829379508.

The previous prime is 1244069269. The next prime is 1244069279. The reversal of 1244069271 is 1729604421.

It is a happy number.

It is not a de Polignac number, because 1244069271 - 2¹ = 1244069269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244069279) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 69114951 + ... + 69114968.

It is an arithmetic number, because the mean of its divisors is an integer number (299498160).

Almost surely, 2^1244069271 is an apocalyptic number.

1244069271 is a deficient number, since it is larger than the sum of its proper divisors (552919689).

1244069271 is a wasteful number, since it uses less digits than its factorization.

1244069271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138229925 (or 138229922 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 1244069271 is about 35271.3661629373. The cubic root of 1244069271 is about 1075.5109944171.

The spelling of 1244069271 in words is "one billion, two hundred forty-four million, sixty-nine thousand, two hundred seventy-one".