1251452314340 has 48 divisors (see below), whose sum is σ = 2802660134400. Its totient is φ = 467745510912.

The previous prime is 1251452314331. The next prime is 1251452314447. The reversal of 1251452314340 is 434132541521.

It is a super-2 number, since 2×1251452314340² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1251452314340.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13192820 + ... + 13287339.

It is an arithmetic number, because the mean of its divisors is an integer number (58388752800).

Almost surely, 2^{1251452314340} is an apocalyptic number.

1251452314340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1251452314340 is an abundant number, since it is smaller than the sum of its proper divisors (1551207820060).

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

1251452314340 is a wasteful number, since it uses less digits than its factorization.

1251452314340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26480324 (or 26480322 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 1251452314340 its reverse (434132541521), we get a palindrome (1685584855861).

The spelling of 1251452314340 in words is "one trillion, two hundred fifty-one billion, four hundred fifty-two million, three hundred fourteen thousand, three hundred forty".