1501161 has 8 divisors (see below), whose sum is σ = 2007264. Its totient is φ = 997920.

The previous prime is 1501139. The next prime is 1501169. The reversal of 1501161 is 1611051.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1501161 - 2⁹ = 1500649 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1501161.

It is not an unprimeable number, because it can be changed into a prime (1501169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1446 + ... + 2256.

It is an arithmetic number, because the mean of its divisors is an integer number (250908).

2^1501161 is an apocalyptic number.

It is an amenable number.

1501161 is a deficient number, since it is larger than the sum of its proper divisors (506103).

1501161 is an equidigital number, since it uses as much as digits as its factorization.

1501161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1431.

The product of its (nonzero) digits is 30, while the sum is 15.

The square root of 1501161 is about 1225.2187559779. The cubic root of 1501161 is about 114.5009502664.

The spelling of 1501161 in words is "one million, five hundred one thousand, one hundred sixty-one".