145719545 has 8 divisors (see below), whose sum is σ = 177730440. Its totient is φ = 114664320.

The previous prime is 145719523. The next prime is 145719547. The reversal of 145719545 is 545917541.

It is a happy number.

145719545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 7327849 + 138391696 = 2707^2 + 11764^2 .

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

It is not a de Polignac number, because 145719545 - 2²⁴ = 128942329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145719547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 238580 + ... + 239189.

It is an arithmetic number, because the mean of its divisors is an integer number (22216305).

Almost surely, 2^145719545 is an apocalyptic number.

It is an amenable number.

145719545 is a deficient number, since it is larger than the sum of its proper divisors (32010895).

145719545 is an equidigital number, since it uses as much as digits as its factorization.

145719545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477835.

The product of its digits is 126000, while the sum is 41.

The square root of 145719545 is about 12071.4350845291. The cubic root of 145719545 is about 526.2263636057.

The spelling of 145719545 in words is "one hundred forty-five million, seven hundred nineteen thousand, five hundred forty-five".