100201545 has 12 divisors (see below), whose sum is σ = 173682756. Its totient is φ = 53440800.

The previous prime is 100201523. The next prime is 100201559. The reversal of 100201545 is 545102001.

100201545 is a `hidden beast` number, since 100 + 20 + 1 + 545 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 66781584 + 33419961 = 8172^2 + 5781^2 .

It is not a de Polignac number, because 100201545 - 2¹⁴ = 100185161 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1113306 + ... + 1113395.

It is an arithmetic number, because the mean of its divisors is an integer number (14473563).

Almost surely, 2^100201545 is an apocalyptic number.

100201545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

100201545 is a deficient number, since it is larger than the sum of its proper divisors (73481211).

100201545 is a wasteful number, since it uses less digits than its factorization.

100201545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2226712 (or 2226709 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 100201545 is about 10010.0721775620. The cubic root of 100201545 is about 464.4705037770.

Adding to 100201545 its reverse (545102001), we get a palindrome (645303546).

The spelling of 100201545 in words is "one hundred million, two hundred one thousand, five hundred forty-five".