15144161 has 4 divisors (see below), whose sum is σ = 16035012. Its totient is φ = 14253312.

The previous prime is 15144149. The next prime is 15144163. The reversal of 15144161 is 16144151.

It is a happy number.

15144161 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 an emirpimes, since its reverse is a distinct semiprime: 16144151 = 1657 ⋅9743.

It can be written as a sum of positive squares in 2 ways, for example, as 6477025 + 8667136 = 2545^2 + 2944^2 .

It is a cyclic number.

It is not a de Polignac number, because 15144161 - 2¹⁰ = 15143137 is a prime.

It is a super-2 number, since 2×15144161² = 458691224787842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15144163) 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, 445400 + ... + 445433.

It is an arithmetic number, because the mean of its divisors is an integer number (4008753).

Almost surely, 2^15144161 is an apocalyptic number.

It is an amenable number.

15144161 is a deficient number, since it is larger than the sum of its proper divisors (890851).

15144161 is an equidigital number, since it uses as much as digits as its factorization.

15144161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890850.

The product of its digits is 480, while the sum is 23.

The square root of 15144161 is about 3891.5499482854. The cubic root of 15144161 is about 247.4087600294.

The spelling of 15144161 in words is "fifteen million, one hundred forty-four thousand, one hundred sixty-one".