145461154453 has 4 divisors (see below), whose sum is σ = 145671663328. Its totient is φ = 145250645580.

The previous prime is 145461154439. The next prime is 145461154457. The reversal of 145461154453 is 354451164541.

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: 354451164541 = 293 ⋅1209730937.

It is a cyclic number.

It is not a de Polignac number, because 145461154453 - 2²⁹ = 144924283541 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 (145461154457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105253401 + ... + 105254782.

It is an arithmetic number, because the mean of its divisors is an integer number (36417915832).

Almost surely, 2^145461154453 is an apocalyptic number.

It is an amenable number.

145461154453 is a deficient number, since it is larger than the sum of its proper divisors (210508875).

145461154453 is an equidigital number, since it uses as much as digits as its factorization.

145461154453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210508874.

The product of its digits is 576000, while the sum is 43.

The spelling of 145461154453 in words is "one hundred forty-five billion, four hundred sixty-one million, one hundred fifty-four thousand, four hundred fifty-three".