1453561145 has 8 divisors (see below), whose sum is σ = 1746309120. Its totient is φ = 1161491760.

The previous prime is 1453561133. The next prime is 1453561147. The reversal of 1453561145 is 5411653541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1453561145 - 2²⁰ = 1452512569 is a prime.

It is a super-3 number, since 3×1453561145³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1453561147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164921 + ... + 173510.

It is an arithmetic number, because the mean of its divisors is an integer number (218288640).

Almost surely, 2^1453561145 is an apocalyptic number.

It is an amenable number.

1453561145 is a deficient number, since it is larger than the sum of its proper divisors (292747975).

1453561145 is an equidigital number, since it uses as much as digits as its factorization.

1453561145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339295.

The product of its digits is 36000, while the sum is 35.

The square root of 1453561145 is about 38125.5969789327. The cubic root of 1453561145 is about 1132.7770329709. Note that the first 3 decimals are identical.

The spelling of 1453561145 in words is "one billion, four hundred fifty-three million, five hundred sixty-one thousand, one hundred forty-five".