100147745 has 16 divisors (see below), whose sum is σ = 121564800. Its totient is φ = 79200000.

The previous prime is 100147711. The next prime is 100147771. The reversal of 100147745 is 547741001.

It is not a de Polignac number, because 100147745 - 2¹² = 100143649 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 249545 + ... + 249945.

It is an arithmetic number, because the mean of its divisors is an integer number (7597800).

Almost surely, 2^100147745 is an apocalyptic number.

It is an amenable number.

100147745 is a deficient number, since it is larger than the sum of its proper divisors (21417055).

100147745 is a wasteful number, since it uses less digits than its factorization.

100147745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856.

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 100147745 is about 10007.3845234407. The cubic root of 100147745 is about 464.3873613906.

Adding to 100147745 its reverse (547741001), we get a palindrome (647888746).

The spelling of 100147745 in words is "one hundred million, one hundred forty-seven thousand, seven hundred forty-five".