904500061 has 2 divisors, whose sum is σ = 904500062. Its totient is φ = 904500060.

The previous prime is 904500043. The next prime is 904500119. The reversal of 904500061 is 160005409.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 714225625 + 190274436 = 26725^2 + 13794^2 .

It is an emirp because it is prime and its reverse (160005409) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 904500061 - 2¹³ = 904491869 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 904499999 and 904500035.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (904500161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 452250030 + 452250031.

It is an arithmetic number, because the mean of its divisors is an integer number (452250031).

Almost surely, 2^904500061 is an apocalyptic number.

It is an amenable number.

904500061 is a deficient number, since it is larger than the sum of its proper divisors (1).

904500061 is an equidigital number, since it uses as much as digits as its factorization.

904500061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 904500061 is about 30074.9074977796. The cubic root of 904500061 is about 967.0958808305.

The spelling of 904500061 in words is "nine hundred four million, five hundred thousand, sixty-one".