100945970 has 16 divisors (see below), whose sum is σ = 183012480. Its totient is φ = 40087344.

The previous prime is 100945961. The next prime is 100945979. The reversal of 100945970 is 79549001.

It is an interprime number because it is at equal distance from previous prime (100945961) and next prime (100945979).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 100945970.

It is not an unprimeable number, because it can be changed into a prime (100945979) 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, 34922 + ... + 37701.

It is an arithmetic number, because the mean of its divisors is an integer number (11438280).

Almost surely, 2^100945970 is an apocalyptic number.

100945970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100945970 is a deficient number, since it is larger than the sum of its proper divisors (82066510).

100945970 is a wasteful number, since it uses less digits than its factorization.

100945970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72769.

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 100945970 is about 10047.1871685562. The cubic root of 100945970 is about 465.6178936501.

The spelling of 100945970 in words is "one hundred million, nine hundred forty-five thousand, nine hundred seventy".