145020453 has 4 divisors (see below), whose sum is σ = 193360608. Its totient is φ = 96680300.

The previous prime is 145020443. The next prime is 145020479. The reversal of 145020453 is 354020541.

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.

It is a cyclic number.

It is not a de Polignac number, because 145020453 - 2⁴ = 145020437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145020443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24170073 + ... + 24170078.

It is an arithmetic number, because the mean of its divisors is an integer number (48340152).

Almost surely, 2^145020453 is an apocalyptic number.

It is an amenable number.

145020453 is a deficient number, since it is larger than the sum of its proper divisors (48340155).

145020453 is an equidigital number, since it uses as much as digits as its factorization.

145020453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48340154.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 145020453 is about 12042.4438134458. The cubic root of 145020453 is about 525.3834876127.

Adding to 145020453 its reverse (354020541), we get a palindrome (499040994).

The spelling of 145020453 in words is "one hundred forty-five million, twenty thousand, four hundred fifty-three".