15000061 has 4 divisors (see below), whose sum is σ = 15053724. Its totient is φ = 14946400.

The previous prime is 15000053. The next prime is 15000067. The reversal of 15000061 is 16000051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16000051 = 1151 ⋅13901.

It can be written as a sum of positive squares in 2 ways, for example, as 5788836 + 9211225 = 2406^2 + 3035^2 .

It is a cyclic number.

It is not a de Polignac number, because 15000061 - 2³ = 15000053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15000067) 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, 26410 + ... + 26971.

It is an arithmetic number, because the mean of its divisors is an integer number (3763431).

Almost surely, 2^15000061 is an apocalyptic number.

It is an amenable number.

15000061 is a deficient number, since it is larger than the sum of its proper divisors (53663).

15000061 is an equidigital number, since it uses as much as digits as its factorization.

15000061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53662.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 15000061 is about 3872.9912212655. The cubic root of 15000061 is about 246.6215417413.

The spelling of 15000061 in words is "fifteen million, sixty-one", and thus it is an aban number and an uban number.