72154063 has 2 divisors, whose sum is σ = 72154064. Its totient is φ = 72154062.

The previous prime is 72154051. The next prime is 72154067. The reversal of 72154063 is 36045127.

It is a strong prime.

It is an emirp because it is prime and its reverse (36045127) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72154063 is a prime.

It is equal to p_4237246 and since 72154063 and 4237246 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 (72154067) 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 as a sum of consecutive naturals, namely, 36077031 + 36077032.

It is an arithmetic number, because the mean of its divisors is an integer number (36077032).

Almost surely, 2^72154063 is an apocalyptic number.

72154063 is a deficient number, since it is larger than the sum of its proper divisors (1).

72154063 is an equidigital number, since it uses as much as digits as its factorization.

72154063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 72154063 is about 8494.3547724356. The cubic root of 72154063 is about 416.3132791039.

The spelling of 72154063 in words is "seventy-two million, one hundred fifty-four thousand, sixty-three".