15127961 has 4 divisors (see below), whose sum is σ = 15194832. Its totient is φ = 15061092.

The previous prime is 15127927. The next prime is 15127963. The reversal of 15127961 is 16972151.

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.

It is a cyclic number.

It is not a de Polignac number, because 15127961 - 2⁶ = 15127897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15127963) 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, 33095 + ... + 33548.

It is an arithmetic number, because the mean of its divisors is an integer number (3798708).

Almost surely, 2^15127961 is an apocalyptic number.

It is an amenable number.

15127961 is a deficient number, since it is larger than the sum of its proper divisors (66871).

15127961 is an equidigital number, since it uses as much as digits as its factorization.

15127961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66870.

The product of its digits is 3780, while the sum is 32.

The square root of 15127961 is about 3889.4679584745. The cubic root of 15127961 is about 247.3205092526.

The spelling of 15127961 in words is "fifteen million, one hundred twenty-seven thousand, nine hundred sixty-one".