1453372502481 has 135 divisors (see below), whose sum is σ = 2339105081313. Its totient is φ = 899250569280.

The previous prime is 1453372502473. The next prime is 1453372502521. The reversal of 1453372502481 is 1842052733541.

The square root of 1453372502481 is 1205559.

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

1453372502481 is a `hidden beast` number, since 1 + 4 + 5 + 33 + 72 + 502 + 48 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 232701076881 + 1220671425600 = 482391^2 + 1104840^2 .

It is not a de Polignac number, because 1453372502481 - 2³ = 1453372502473 is a prime.

It is a super-2 number, since 2×1453372502481² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1453372502471) by changing a digit.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 9754177795 + ... + 9754177943.

Almost surely, 2^{1453372502481} is an apocalyptic number.

1453372502481 is the 1205559-th square number.

1453372502481 is the 602780-th centered octagonal number.

It is an amenable number.

1453372502481 is a deficient number, since it is larger than the sum of its proper divisors (885732578832).

1453372502481 is an frugal number, since it uses more digits than its factorization.

1453372502481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430 (or 212 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

The spelling of 1453372502481 in words is "one trillion, four hundred fifty-three billion, three hundred seventy-two million, five hundred two thousand, four hundred eighty-one".