100545965 has 8 divisors (see below), whose sum is σ = 129936408. Its totient is φ = 74249280.

The previous prime is 100545961. The next prime is 100545979. The reversal of 100545965 is 569545001.

It can be written as a sum of positive squares in 4 ways, for example, as 3976036 + 96569929 = 1994^2 + 9827^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100545965 - 2² = 100545961 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100545961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 773366 + ... + 773495.

It is an arithmetic number, because the mean of its divisors is an integer number (16242051).

Almost surely, 2^100545965 is an apocalyptic number.

It is an amenable number.

100545965 is a deficient number, since it is larger than the sum of its proper divisors (29390443).

100545965 is a wasteful number, since it uses less digits than its factorization.

100545965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1546879.

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 100545965 is about 10027.2610916441. The cubic root of 100545965 is about 465.0020657402.

The spelling of 100545965 in words is "one hundred million, five hundred forty-five thousand, nine hundred sixty-five".