145273786 has 8 divisors (see below), whose sum is σ = 249040800. Its totient is φ = 62260188.

The previous prime is 145273771. The next prime is 145273787. The reversal of 145273786 is 687372541.

145273786 is digitally balanced in base 2, 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 super-2 number, since 2×145273786² = 42208945797547592, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145273787) 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, 5188336 + ... + 5188363.

It is an arithmetic number, because the mean of its divisors is an integer number (31130100).

Almost surely, 2^145273786 is an apocalyptic number.

145273786 is a deficient number, since it is larger than the sum of its proper divisors (103767014).

145273786 is a wasteful number, since it uses less digits than its factorization.

145273786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10376708.

The product of its digits is 282240, while the sum is 43.

The square root of 145273786 is about 12052.9575623579. The cubic root of 145273786 is about 525.6892365515.

The spelling of 145273786 in words is "one hundred forty-five million, two hundred seventy-three thousand, seven hundred eighty-six".