1251453024340 has 12 divisors (see below), whose sum is σ = 2628051351156. Its totient is φ = 500581209728.

The previous prime is 1251453024301. The next prime is 1251453024391. The reversal of 1251453024340 is 434203541521.

It can be written as a sum of positive squares in 2 ways, for example, as 319536956176 + 931916068164 = 565276^2 + 965358^2 .

It is a super-2 number, since 2×1251453024340² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1251453024296 and 1251453024305.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 31286325589 + ... + 31286325628.

It is an arithmetic number, because the mean of its divisors is an integer number (219004279263).

Almost surely, 2^{1251453024340} is an apocalyptic number.

1251453024340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1251453024340 is an abundant number, since it is smaller than the sum of its proper divisors (1376598326816).

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

1251453024340 is a wasteful number, since it uses less digits than its factorization.

1251453024340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62572651226 (or 62572651224 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 1251453024340 its reverse (434203541521), we get a palindrome (1685656565861).

The spelling of 1251453024340 in words is "one trillion, two hundred fifty-one billion, four hundred fifty-three million, twenty-four thousand, three hundred forty".