100672545 has 16 divisors (see below), whose sum is σ = 169554240. Its totient is φ = 50865984.

The previous prime is 100672513. The next prime is 100672547. The reversal of 100672545 is 545276001.

It is not a de Polignac number, because 100672545 - 2⁵ = 100672513 is a prime.

It is a super-2 number, since 2×100672545² = 20269922633554050, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (100672547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176334 + ... + 176903.

It is an arithmetic number, because the mean of its divisors is an integer number (10597140).

Almost surely, 2^100672545 is an apocalyptic number.

100672545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

100672545 is a deficient number, since it is larger than the sum of its proper divisors (68881695).

100672545 is a wasteful number, since it uses less digits than its factorization.

100672545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353264.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 100672545 is about 10033.5708997346. The cubic root of 100672545 is about 465.1971184163.

The spelling of 100672545 in words is "one hundred million, six hundred seventy-two thousand, five hundred forty-five".