145541453 has 4 divisors (see below), whose sum is σ = 145638048. Its totient is φ = 145444860.

The previous prime is 145541449. The next prime is 145541477. The reversal of 145541453 is 354145541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 354145541 = 19 ⋅18639239.

It is a cyclic number.

It is not a de Polignac number, because 145541453 - 2² = 145541449 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145540453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46001 + ... + 49062.

It is an arithmetic number, because the mean of its divisors is an integer number (36409512).

Almost surely, 2^145541453 is an apocalyptic number.

It is an amenable number.

145541453 is a deficient number, since it is larger than the sum of its proper divisors (96595).

145541453 is an equidigital number, since it uses as much as digits as its factorization.

145541453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96594.

The product of its digits is 24000, while the sum is 32.

The square root of 145541453 is about 12064.0562415798. The cubic root of 145541453 is about 526.0118993294.

Adding to 145541453 its reverse (354145541), we get a palindrome (499686994).

The spelling of 145541453 in words is "one hundred forty-five million, five hundred forty-one thousand, four hundred fifty-three".