103761561 has 8 divisors (see below), whose sum is σ = 138628000. Its totient is φ = 69034752.

The previous prime is 103761551. The next prime is 103761577. The reversal of 103761561 is 165167301.

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

It is a de Polignac number, because none of the positive numbers 2^k-103761561 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (103761521) 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, 33160 + ... + 36153.

It is an arithmetic number, because the mean of its divisors is an integer number (17328500).

Almost surely, 2^103761561 is an apocalyptic number.

It is an amenable number.

103761561 is a deficient number, since it is larger than the sum of its proper divisors (34866439).

103761561 is an equidigital number, since it uses as much as digits as its factorization.

103761561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69815.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 103761561 is about 10186.3418850930. The cubic root of 103761561 is about 469.9072715812.

The spelling of 103761561 in words is "one hundred three million, seven hundred sixty-one thousand, five hundred sixty-one".