145630072 has 32 divisors (see below), whose sum is σ = 312628320. Its totient is φ = 62300160.

The previous prime is 145630027. The next prime is 145630081. The reversal of 145630072 is 270036541.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 145630072.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33868 + ... + 37924.

It is an arithmetic number, because the mean of its divisors is an integer number (9769635).

Almost surely, 2^145630072 is an apocalyptic number.

It is an amenable number.

145630072 is an abundant number, since it is smaller than the sum of its proper divisors (166998248).

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

145630072 is a wasteful number, since it uses less digits than its factorization.

145630072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4711 (or 4707 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 145630072 is about 12067.7285352298. The cubic root of 145630072 is about 526.1186391153.

The spelling of 145630072 in words is "one hundred forty-five million, six hundred thirty thousand, seventy-two".