100145072 has 20 divisors (see below), whose sum is σ = 194242776. Its totient is φ = 50017920.

The previous prime is 100145047. The next prime is 100145077. The reversal of 100145072 is 270541001.

It is not an unprimeable number, because it can be changed into a prime (100145077) 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, 14588 + ... + 20324.

Almost surely, 2^100145072 is an apocalyptic number.

It is an amenable number.

100145072 is a deficient number, since it is larger than the sum of its proper divisors (94097704).

100145072 is a wasteful number, since it uses less digits than its factorization.

100145072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6836 (or 6830 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 100145072 is about 10007.2509711709. The cubic root of 100145072 is about 464.3832297667.

Adding to 100145072 its reverse (270541001), we get a palindrome (370686073).

The spelling of 100145072 in words is "one hundred million, one hundred forty-five thousand, seventy-two".