72208141 has 2 divisors, whose sum is σ = 72208142. Its totient is φ = 72208140.

The previous prime is 72208067. The next prime is 72208177. The reversal of 72208141 is 14180227.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57608100 + 14600041 = 7590^2 + 3821^2 .

It is a cyclic number.

It is not a de Polignac number, because 72208141 - 2⁷ = 72208013 is a prime.

It is equal to p_4240276 and since 72208141 and 4240276 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72208181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36104070 + 36104071.

It is an arithmetic number, because the mean of its divisors is an integer number (36104071).

Almost surely, 2^72208141 is an apocalyptic number.

It is an amenable number.

72208141 is a deficient number, since it is larger than the sum of its proper divisors (1).

72208141 is an equidigital number, since it uses as much as digits as its factorization.

72208141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 72208141 is about 8497.5373491383. The cubic root of 72208141 is about 416.4172592378.

Adding to 72208141 its reverse (14180227), we get a palindrome (86388368).

It can be divided in two parts, 72208 and 141, that multiplied together give a triangular number (10181328 = T₄₅₁₂).

The spelling of 72208141 in words is "seventy-two million, two hundred eight thousand, one hundred forty-one".