145719506 has 8 divisors (see below), whose sum is σ = 221841840. Its totient is φ = 71772228.

The previous prime is 145719503. The next prime is 145719517. The reversal of 145719506 is 605917541.

145719506 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

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 145719506.

It is not an unprimeable number, because it can be changed into a prime (145719503) 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, 543596 + ... + 543863.

It is an arithmetic number, because the mean of its divisors is an integer number (27730230).

Almost surely, 2^145719506 is an apocalyptic number.

145719506 is a deficient number, since it is larger than the sum of its proper divisors (76122334).

145719506 is a wasteful number, since it uses less digits than its factorization.

145719506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1087528.

The product of its (nonzero) digits is 37800, while the sum is 38.

The square root of 145719506 is about 12071.4334691452. The cubic root of 145719506 is about 526.2263166598.

The spelling of 145719506 in words is "one hundred forty-five million, seven hundred nineteen thousand, five hundred six".