101286945 has 48 divisors (see below), whose sum is σ = 182108160. Its totient is φ = 52036992.

The previous prime is 101286943. The next prime is 101286947. The reversal of 101286945 is 549682101.

It is an interprime number because it is at equal distance from previous prime (101286943) and next prime (101286947).

It is not a de Polignac number, because 101286945 - 2¹ = 101286943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101286943) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 211216 + ... + 211694.

It is an arithmetic number, because the mean of its divisors is an integer number (3793920).

Almost surely, 2^101286945 is an apocalyptic number.

101286945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

101286945 is a deficient number, since it is larger than the sum of its proper divisors (80821215).

101286945 is a wasteful number, since it uses less digits than its factorization.

101286945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654 (or 651 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 101286945 is about 10064.1415431223. The cubic root of 101286945 is about 466.1415587302.

Adding to 101286945 its product of nonzero digits (17280), we get a square (101304225 = 10065²).

The spelling of 101286945 in words is "one hundred one million, two hundred eighty-six thousand, nine hundred forty-five".