145791272 has 16 divisors (see below), whose sum is σ = 298209600. Its totient is φ = 66268720.

The previous prime is 145791271. The next prime is 145791277. The reversal of 145791272 is 272197541.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (145791271) 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, 828272 + ... + 828447.

It is an arithmetic number, because the mean of its divisors is an integer number (18638100).

Almost surely, 2^145791272 is an apocalyptic number.

It is an amenable number.

145791272 is an abundant number, since it is smaller than the sum of its proper divisors (152418328).

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

145791272 is a wasteful number, since it uses less digits than its factorization.

145791272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1656736 (or 1656732 counting only the distinct ones).

The product of its digits is 35280, while the sum is 38.

The square root of 145791272 is about 12074.4056582508. The cubic root of 145791272 is about 526.3126902709.

It can be divided in two parts, 14579 and 1272, that added together give a palindrome (15851).

The spelling of 145791272 in words is "one hundred forty-five million, seven hundred ninety-one thousand, two hundred seventy-two".