1345906257424 has 15 divisors (see below), whose sum is σ = 2607702364813. Its totient is φ = 672950808448.

The previous prime is 1345906257419. The next prime is 1345906257433. The reversal of 1345906257424 is 4247526095431.

The square root of 1345906257424 is 1160132.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 878006480400 + 467899777024 = 937020^2 + 684032^2 .

It is a super-2 number, since 2×1345906257424² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

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 2 ways as a sum of consecutive naturals, for example, 4495512 + ... + 4785544.

Almost surely, 2^{1345906257424} is an apocalyptic number.

1345906257424 is the 1160132-nd square number.

It is an amenable number.

1345906257424 is a deficient number, since it is larger than the sum of its proper divisors (1261796107389).

1345906257424 is an frugal number, since it uses more digits than its factorization.

1345906257424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580074 (or 290035 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 52.

The spelling of 1345906257424 in words is "one trillion, three hundred forty-five billion, nine hundred six million, two hundred fifty-seven thousand, four hundred twenty-four".