101603645 has 48 divisors (see below), whose sum is σ = 152736192. Its totient is φ = 64097280.

The previous prime is 101603633. The next prime is 101603651. The reversal of 101603645 is 546306101.

It is not a de Polignac number, because 101603645 - 2²² = 97409341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 157694 + ... + 158336.

It is an arithmetic number, because the mean of its divisors is an integer number (3182004).

Almost surely, 2^101603645 is an apocalyptic number.

It is an amenable number.

101603645 is a deficient number, since it is larger than the sum of its proper divisors (51132547).

101603645 is a wasteful number, since it uses less digits than its factorization.

101603645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702 (or 689 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 101603645 is about 10079.8633423276. The cubic root of 101603645 is about 466.6268908842.

Adding to 101603645 its reverse (546306101), we get a palindrome (647909746).

The spelling of 101603645 in words is "one hundred one million, six hundred three thousand, six hundred forty-five".