103778401 has 2 divisors, whose sum is σ = 103778402. Its totient is φ = 103778400.

The previous prime is 103778383. The next prime is 103778417. The reversal of 103778401 is 104877301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95570176 + 8208225 = 9776^2 + 2865^2 .

It is a cyclic number.

It is not a de Polignac number, because 103778401 - 2⁷ = 103778273 is a prime.

It is not a weakly prime, because it can be changed into another prime (103778201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51889200 + 51889201.

It is an arithmetic number, because the mean of its divisors is an integer number (51889201).

Almost surely, 2^103778401 is an apocalyptic number.

It is an amenable number.

103778401 is a deficient number, since it is larger than the sum of its proper divisors (1).

103778401 is an equidigital number, since it uses as much as digits as its factorization.

103778401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 103778401 is about 10187.1684485926. The cubic root of 103778401 is about 469.9326914326.

The spelling of 103778401 in words is "one hundred three million, seven hundred seventy-eight thousand, four hundred one".