1512161 has 4 divisors (see below), whose sum is σ = 1728192. Its totient is φ = 1296132.

The previous prime is 1512127. The next prime is 1512169. The reversal of 1512161 is 1612151.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1612151 = 353 ⋅4567.

It is a cyclic number.

It is not a de Polignac number, because 1512161 - 2⁶ = 1512097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1512169) 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, 108005 + ... + 108018.

It is an arithmetic number, because the mean of its divisors is an integer number (432048).

2^1512161 is an apocalyptic number.

It is an amenable number.

1512161 is a deficient number, since it is larger than the sum of its proper divisors (216031).

1512161 is an equidigital number, since it uses as much as digits as its factorization.

1512161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216030.

The product of its digits is 60, while the sum is 17.

The square root of 1512161 is about 1229.6995568024. The cubic root of 1512161 is about 114.7799446567.

The spelling of 1512161 in words is "one million, five hundred twelve thousand, one hundred sixty-one".