1015901 has 4 divisors (see below), whose sum is σ = 1048704. Its totient is φ = 983100.

The previous prime is 1015897. The next prime is 1015907. The reversal of 1015901 is 1095101.

It is a happy number.

1015901 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1015901 - 2² = 1015897 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1015901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1015907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16355 + ... + 16416.

It is an arithmetic number, because the mean of its divisors is an integer number (262176).

2^1015901 is an apocalyptic number.

It is an amenable number.

1015901 is a deficient number, since it is larger than the sum of its proper divisors (32803).

1015901 is an equidigital number, since it uses as much as digits as its factorization.

1015901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32802.

The product of its (nonzero) digits is 45, while the sum is 17.

The square root of 1015901 is about 1007.9191435825. The cubic root of 1015901 is about 100.5272485375.

The spelling of 1015901 in words is "one million, fifteen thousand, nine hundred one".