72135463 has 2 divisors, whose sum is σ = 72135464. Its totient is φ = 72135462.

The previous prime is 72135451. The next prime is 72135473. The reversal of 72135463 is 36453127.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72135463 - 2⁵ = 72135431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72135433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36067731 + 36067732.

It is an arithmetic number, because the mean of its divisors is an integer number (36067732).

Almost surely, 2^72135463 is an apocalyptic number.

72135463 is a deficient number, since it is larger than the sum of its proper divisors (1).

72135463 is an equidigital number, since it uses as much as digits as its factorization.

72135463 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 31.

The square root of 72135463 is about 8493.2598570867. The cubic root of 72135463 is about 416.2775033756.

The spelling of 72135463 in words is "seventy-two million, one hundred thirty-five thousand, four hundred sixty-three".