145721176 has 16 divisors (see below), whose sum is σ = 274645800. Its totient is φ = 72482304.

The previous prime is 145721171. The next prime is 145721179. The reversal of 145721176 is 671127541.

145721176 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×145721176² = 42469322269645952, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145721171) 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, 45646 + ... + 48733.

Almost surely, 2^145721176 is an apocalyptic number.

It is an amenable number.

145721176 is a deficient number, since it is larger than the sum of its proper divisors (128924624).

145721176 is a wasteful number, since it uses less digits than its factorization.

145721176 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94578 (or 94574 counting only the distinct ones).

The product of its digits is 11760, while the sum is 34.

The square root of 145721176 is about 12071.5026405166. The cubic root of 145721176 is about 526.2283269022.

The spelling of 145721176 in words is "one hundred forty-five million, seven hundred twenty-one thousand, one hundred seventy-six".