145972572 has 12 divisors (see below), whose sum is σ = 340602696. Its totient is φ = 48657520.

The previous prime is 145972517. The next prime is 145972579. The reversal of 145972572 is 275279541.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145972579) 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, 6082179 + ... + 6082202.

It is an arithmetic number, because the mean of its divisors is an integer number (28383558).

Almost surely, 2^145972572 is an apocalyptic number.

145972572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

145972572 is an abundant number, since it is smaller than the sum of its proper divisors (194630124).

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

145972572 is a wasteful number, since it uses less digits than its factorization.

145972572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12164388 (or 12164386 counting only the distinct ones).

The product of its digits is 176400, while the sum is 42.

The square root of 145972572 is about 12081.9109415688. The cubic root of 145972572 is about 526.5307668015.

The spelling of 145972572 in words is "one hundred forty-five million, nine hundred seventy-two thousand, five hundred seventy-two".