100061961 has 16 divisors (see below), whose sum is σ = 140870400. Its totient is φ = 63002448.

The previous prime is 100061959. The next prime is 100061971. The reversal of 100061961 is 169160001.

It is not a de Polignac number, because 100061961 - 2¹ = 100061959 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (100061921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17250 + ... + 22308.

It is an arithmetic number, because the mean of its divisors is an integer number (8804400).

Almost surely, 2^100061961 is an apocalyptic number.

It is an amenable number.

100061961 is a deficient number, since it is larger than the sum of its proper divisors (40808439).

100061961 is a wasteful number, since it uses less digits than its factorization.

100061961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5428.

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 100061961 is about 10003.0975702529. The cubic root of 100061961 is about 464.2547293969.

The spelling of 100061961 in words is "one hundred million, sixty-one thousand, nine hundred sixty-one".