104375781 has 6 divisors (see below), whose sum is σ = 150765030. Its totient is φ = 69583848.

The previous prime is 104375743. The next prime is 104375807. The reversal of 104375781 is 187573401.

It can be written as a sum of positive squares in only one way, i.e., 104223681 + 152100 = 10209^2 + 390^2 .

It is not a de Polignac number, because 104375781 - 2⁶ = 104375717 is a prime.

It is a super-2 number, since 2×104375781² = 21788607318719922, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104375731) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5798646 + ... + 5798663.

It is an arithmetic number, because the mean of its divisors is an integer number (25127505).

Almost surely, 2^104375781 is an apocalyptic number.

It is an amenable number.

104375781 is a deficient number, since it is larger than the sum of its proper divisors (46389249).

104375781 is a wasteful number, since it uses less digits than its factorization.

104375781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11597315 (or 11597312 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 104375781 is about 10216.4465936058. The cubic root of 104375781 is about 470.8326585801.

The spelling of 104375781 in words is "one hundred four million, three hundred seventy-five thousand, seven hundred eighty-one".