145232561453 has 16 divisors (see below), whose sum is σ = 171189932544. Its totient is φ = 120630105600.

The previous prime is 145232561413. The next prime is 145232561459. The reversal of 145232561453 is 354165232541.

It is a cyclic number.

It is not a de Polignac number, because 145232561453 - 2⁶ = 145232561389 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 145232561453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145232561459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2152100 + ... + 2218557.

It is an arithmetic number, because the mean of its divisors is an integer number (10699370784).

Almost surely, 2^145232561453 is an apocalyptic number.

It is an amenable number.

145232561453 is a deficient number, since it is larger than the sum of its proper divisors (25957371091).

145232561453 is a wasteful number, since it uses less digits than its factorization.

145232561453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4370812.

The product of its digits is 432000, while the sum is 41.

Adding to 145232561453 its reverse (354165232541), we get a palindrome (499397793994).

The spelling of 145232561453 in words is "one hundred forty-five billion, two hundred thirty-two million, five hundred sixty-one thousand, four hundred fifty-three".