145719072 has 36 divisors (see below), whose sum is σ = 414389430. Its totient is φ = 48572928.

The previous prime is 145719059. The next prime is 145719073. The reversal of 145719072 is 270917541.

It is a happy number.

145719072 is a `hidden beast` number, since 14 + 571 + 9 + 0 + 72 = 666.

145719072 is digitally balanced in base 3, 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 only one way, i.e., 144865296 + 853776 = 12036^2 + 924^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (145719073) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 252697 + ... + 253272.

Almost surely, 2^145719072 is an apocalyptic number.

145719072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

145719072 is an abundant number, since it is smaller than the sum of its proper divisors (268670358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145719072 is a wasteful number, since it uses less digits than its factorization.

145719072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505985 (or 505974 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The square root of 145719072 is about 12071.4154928078. The cubic root of 145719072 is about 526.2257942350.

The spelling of 145719072 in words is "one hundred forty-five million, seven hundred nineteen thousand, seventy-two".