104521145401 has 2 divisors, whose sum is σ = 104521145402. Its totient is φ = 104521145400.

The previous prime is 104521145371. The next prime is 104521145411. The reversal of 104521145401 is 104541125401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69314252176 + 35206893225 = 263276^2 + 187635^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104521145401 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 104521145401.

It is not a weakly prime, because it can be changed into another prime (104521145411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52260572700 + 52260572701.

It is an arithmetic number, because the mean of its divisors is an integer number (52260572701).

Almost surely, 2^104521145401 is an apocalyptic number.

It is an amenable number.

104521145401 is a deficient number, since it is larger than the sum of its proper divisors (1).

104521145401 is an equidigital number, since it uses as much as digits as its factorization.

104521145401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3200, while the sum is 28.

The spelling of 104521145401 in words is "one hundred four billion, five hundred twenty-one million, one hundred forty-five thousand, four hundred one".