1251352045 has 8 divisors (see below), whose sum is σ = 1550062080. Its totient is φ = 968788560.

The previous prime is 1251352043. The next prime is 1251352051. The reversal of 1251352045 is 5402531521.

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

It is not a de Polignac number, because 1251352045 - 2¹ = 1251352043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1251352043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4036465 + ... + 4036774.

It is an arithmetic number, because the mean of its divisors is an integer number (193757760).

Almost surely, 2^1251352045 is an apocalyptic number.

It is an amenable number.

1251352045 is a deficient number, since it is larger than the sum of its proper divisors (298710035).

1251352045 is an equidigital number, since it uses as much as digits as its factorization.

1251352045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8073275.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 1251352045 is about 35374.4546954437. The cubic root of 1251352045 is about 1077.6055907561.

Adding to 1251352045 its reverse (5402531521), we get a palindrome (6653883566).

The spelling of 1251352045 in words is "one billion, two hundred fifty-one million, three hundred fifty-two thousand, forty-five".