7215001061 has 8 divisors (see below), whose sum is σ = 7347699744. Its totient is φ = 7083038160.

The previous prime is 7215001049. The next prime is 7215001091. The reversal of 7215001061 is 1601005127.

7215001061 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7215001061 - 2²⁶ = 7147892197 is a prime.

It is a super-2 number, since 2×7215001061² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7215001091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164135 + ... + 203396.

It is an arithmetic number, because the mean of its divisors is an integer number (918462468).

Almost surely, 2^7215001061 is an apocalyptic number.

It is an amenable number.

7215001061 is a deficient number, since it is larger than the sum of its proper divisors (132698683).

7215001061 is a wasteful number, since it uses less digits than its factorization.

7215001061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367891.

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 7215001061 is about 84941.1623478276. The cubic root of 7215001061 is about 1932.3188912646.

Adding to 7215001061 its reverse (1601005127), we get a palindrome (8816006188).

The spelling of 7215001061 in words is "seven billion, two hundred fifteen million, one thousand, sixty-one".