15232312061 has 2 divisors, whose sum is σ = 15232312062. Its totient is φ = 15232312060.

The previous prime is 15232312049. The next prime is 15232312133. The reversal of 15232312061 is 16021323251.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15232249561 + 62500 = 123419^2 + 250^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15232312061 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15232312061.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15232312261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7616156030 + 7616156031.

It is an arithmetic number, because the mean of its divisors is an integer number (7616156031).

Almost surely, 2^15232312061 is an apocalyptic number.

It is an amenable number.

15232312061 is a deficient number, since it is larger than the sum of its proper divisors (1).

15232312061 is an equidigital number, since it uses as much as digits as its factorization.

15232312061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 26.

The spelling of 15232312061 in words is "fifteen billion, two hundred thirty-two million, three hundred twelve thousand, sixty-one".