1244532045 has 32 divisors (see below), whose sum is σ = 2063867904. Its totient is φ = 639720000.

The previous prime is 1244532007. The next prime is 1244532059. The reversal of 1244532045 is 5402354421.

It is not a de Polignac number, because 1244532045 - 2¹⁴ = 1244515661 is a prime.

It is a super-2 number, since 2×1244532045² = 3097720022063764050, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111384 + ... + 122046.

It is an arithmetic number, because the mean of its divisors is an integer number (64495872).

Almost surely, 2^1244532045 is an apocalyptic number.

1244532045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1244532045 is a deficient number, since it is larger than the sum of its proper divisors (819335859).

1244532045 is a wasteful number, since it uses less digits than its factorization.

1244532045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10953.

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 1244532045 is about 35277.9257468463. The cubic root of 1244532045 is about 1075.6443355514.

Adding to 1244532045 its reverse (5402354421), we get a palindrome (6646886466).

The spelling of 1244532045 in words is "one billion, two hundred forty-four million, five hundred thirty-two thousand, forty-five".