145872616 has 8 divisors (see below), whose sum is σ = 273511170. Its totient is φ = 72936304.

The previous prime is 145872607. The next prime is 145872619. The reversal of 145872616 is 616278541.

145872616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 103022500 + 42850116 = 10150^2 + 6546^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (145872619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9117031 + ... + 9117046.

Almost surely, 2^145872616 is an apocalyptic number.

It is an amenable number.

145872616 is a deficient number, since it is larger than the sum of its proper divisors (127638554).

145872616 is a wasteful number, since it uses less digits than its factorization.

145872616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18234083 (or 18234079 counting only the distinct ones).

The product of its digits is 80640, while the sum is 40.

The square root of 145872616 is about 12077.7736358983. The cubic root of 145872616 is about 526.4105571710.

The spelling of 145872616 in words is "one hundred forty-five million, eight hundred seventy-two thousand, six hundred sixteen".