1244121064 has 64 divisors (see below), whose sum is σ = 2660644800. Its totient is φ = 541707264.

The previous prime is 1244121061. The next prime is 1244121077. The reversal of 1244121064 is 4601214421.

It is a super-3 number, since 3×1244121064³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1244121061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105514 + ... + 116710.

It is an arithmetic number, because the mean of its divisors is an integer number (41572575).

Almost surely, 2^1244121064 is an apocalyptic number.

It is an amenable number.

1244121064 is an abundant number, since it is smaller than the sum of its proper divisors (1416523736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1244121064 is a wasteful number, since it uses less digits than its factorization.

1244121064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11282 (or 11278 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 1244121064 is about 35272.1003627513. The cubic root of 1244121064 is about 1075.5259194081.

Adding to 1244121064 its reverse (4601214421), we get a palindrome (5845335485).

The spelling of 1244121064 in words is "one billion, two hundred forty-four million, one hundred twenty-one thousand, sixty-four".