245616001 has 2 divisors, whose sum is σ = 245616002. Its totient is φ = 245616000.

The previous prime is 245615999. The next prime is 245616053. The reversal of 245616001 is 100616542.

245616001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 161417025 + 84198976 = 12705^2 + 9176^2 .

It is a cyclic number.

It is not a de Polignac number, because 245616001 - 2¹ = 245615999 is a prime.

Together with 245615999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (245616601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122808000 + 122808001.

It is an arithmetic number, because the mean of its divisors is an integer number (122808001).

Almost surely, 2^245616001 is an apocalyptic number.

It is an amenable number.

245616001 is a deficient number, since it is larger than the sum of its proper divisors (1).

245616001 is an equidigital number, since it uses as much as digits as its factorization.

245616001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 245616001 is about 15672.1409194787. The cubic root of 245616001 is about 626.2564599209.

The spelling of 245616001 in words is "two hundred forty-five million, six hundred sixteen thousand, one".