7212506413 has 4 divisors (see below), whose sum is σ = 8242864480. Its totient is φ = 6182148348.

The previous prime is 7212506363. The next prime is 7212506417. The reversal of 7212506413 is 3146052127.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3146052127 = 463 ⋅6794929.

It is a cyclic number.

It is not a de Polignac number, because 7212506413 - 2¹³ = 7212498221 is a prime.

It is a super-3 number, since 3×7212506413³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7212506417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 515179023 + ... + 515179036.

It is an arithmetic number, because the mean of its divisors is an integer number (2060716120).

Almost surely, 2^7212506413 is an apocalyptic number.

It is an amenable number.

7212506413 is a deficient number, since it is larger than the sum of its proper divisors (1030358067).

7212506413 is a wasteful number, since it uses less digits than its factorization.

7212506413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030358066.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 7212506413 is about 84926.4765135114. The cubic root of 7212506413 is about 1932.0961603602.

The spelling of 7212506413 in words is "seven billion, two hundred twelve million, five hundred six thousand, four hundred thirteen".