1015601 has 2 divisors, whose sum is σ = 1015602. Its totient is φ = 1015600.

The previous prime is 1015571. The next prime is 1015603. The reversal of 1015601 is 1065101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 874225 + 141376 = 935^2 + 376^2 .

It is a cyclic number.

It is not a de Polignac number, because 1015601 - 2¹⁴ = 999217 is a prime.

Together with 1015603, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (1015603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 507800 + 507801.

It is an arithmetic number, because the mean of its divisors is an integer number (507801).

2^1015601 is an apocalyptic number.

It is an amenable number.

1015601 is a deficient number, since it is larger than the sum of its proper divisors (1).

1015601 is an equidigital number, since it uses as much as digits as its factorization.

1015601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 1015601 is about 1007.7703111325. The cubic root of 1015601 is about 100.5173521848.

The spelling of 1015601 in words is "one million, fifteen thousand, six hundred one".