145025454565 has 8 divisors (see below), whose sum is σ = 174063581208. Its totient is φ = 115998339840.

The previous prime is 145025454557. The next prime is 145025454571. The reversal of 145025454565 is 565454520541.

It can be written as a sum of positive squares in 4 ways, for example, as 35097399649 + 109928054916 = 187343^2 + 331554^2 .

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

It is not a de Polignac number, because 145025454565 - 2³ = 145025454557 is a prime.

It is a super-4 number, since 4×145025454565⁴ (a number of 46 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2723976 + ... + 2776705.

It is an arithmetic number, because the mean of its divisors is an integer number (21757947651).

Almost surely, 2^145025454565 is an apocalyptic number.

It is an amenable number.

145025454565 is a deficient number, since it is larger than the sum of its proper divisors (29038126643).

145025454565 is an equidigital number, since it uses as much as digits as its factorization.

145025454565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5505959.

The product of its (nonzero) digits is 2400000, while the sum is 46.

The spelling of 145025454565 in words is "one hundred forty-five billion, twenty-five million, four hundred fifty-four thousand, five hundred sixty-five".