72601523 has 2 divisors, whose sum is σ = 72601524. Its totient is φ = 72601522.

The previous prime is 72601481. The next prime is 72601541. The reversal of 72601523 is 32510627.

It is a strong prime.

It is an emirp because it is prime and its reverse (32510627) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72601523 is a prime.

It is a super-2 number, since 2×72601523² = 10541962283839058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 72601492 and 72601501.

It is not a weakly prime, because it can be changed into another prime (72601723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36300761 + 36300762.

It is an arithmetic number, because the mean of its divisors is an integer number (36300762).

Almost surely, 2^72601523 is an apocalyptic number.

72601523 is a deficient number, since it is larger than the sum of its proper divisors (1).

72601523 is an equidigital number, since it uses as much as digits as its factorization.

72601523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 72601523 is about 8520.6527332124. The cubic root of 72601523 is about 417.1720886067.

The spelling of 72601523 in words is "seventy-two million, six hundred one thousand, five hundred twenty-three".