1052400143245 has 12 divisors (see below), whose sum is σ = 1388124487260. Its totient is φ = 765381921920.

The previous prime is 1052400143231. The next prime is 1052400143369. The reversal of 1052400143245 is 5423410042501.

It can be written as a sum of positive squares in 2 ways, for example, as 480752249769 + 571647893476 = 693363^2 + 756074^2 .

It is not a de Polignac number, because 1052400143245 - 2²³ = 1052391754637 is a prime.

It is a super-2 number, since 2×1052400143245² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 869751580 + ... + 869752789.

It is an arithmetic number, because the mean of its divisors is an integer number (115677040605).

Almost surely, 2^{1052400143245} is an apocalyptic number.

It is an amenable number.

1052400143245 is a deficient number, since it is larger than the sum of its proper divisors (335724344015).

1052400143245 is a wasteful number, since it uses less digits than its factorization.

1052400143245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1739504396 (or 1739504385 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 1052400143245 its reverse (5423410042501), we get a palindrome (6475810185746).

The spelling of 1052400143245 in words is "one trillion, fifty-two billion, four hundred million, one hundred forty-three thousand, two hundred forty-five".