7272015139 has 2 divisors, whose sum is σ = 7272015140. Its totient is φ = 7272015138.

The previous prime is 7272015119. The next prime is 7272015151. The reversal of 7272015139 is 9315102727.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7272015139 - 2¹⁵ = 7271982371 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7272015098 and 7272015107.

It is not a weakly prime, because it can be changed into another prime (7272015119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3636007569 + 3636007570.

It is an arithmetic number, because the mean of its divisors is an integer number (3636007570).

Almost surely, 2^7272015139 is an apocalyptic number.

7272015139 is a deficient number, since it is larger than the sum of its proper divisors (1).

7272015139 is an equidigital number, since it uses as much as digits as its factorization.

7272015139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 7272015139 is about 85276.1111859588. Note that the first 4 decimals coincide. The cubic root of 7272015139 is about 1937.3953726311.

The spelling of 7272015139 in words is "seven billion, two hundred seventy-two million, fifteen thousand, one hundred thirty-nine".