1000015161 has 4 divisors (see below), whose sum is σ = 1333353552. Its totient is φ = 666676772.

The previous prime is 1000015147. The next prime is 1000015187. The reversal of 1000015161 is 1615100001.

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: 1615100001 = 3 ⋅538366667.

It is a cyclic number.

It is not a de Polignac number, because 1000015161 - 2⁶ = 1000015097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1000015161.

It is not an unprimeable number, because it can be changed into a prime (1000015141) 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, 166669191 + ... + 166669196.

It is an arithmetic number, because the mean of its divisors is an integer number (333338388).

Almost surely, 2^1000015161 is an apocalyptic number.

It is an amenable number.

1000015161 is a deficient number, since it is larger than the sum of its proper divisors (333338391).

1000015161 is an equidigital number, since it uses as much as digits as its factorization.

1000015161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333338390.

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

The square root of 1000015161 is about 31623.0163172332. The cubic root of 1000015161 is about 1000.0050536411.

Adding to 1000015161 its reverse (1615100001), we get a palindrome (2615115162).

The spelling of 1000015161 in words is "one billion, fifteen thousand, one hundred sixty-one".