72826145 has 32 divisors (see below), whose sum is σ = 106310400. Its totient is φ = 46780416.

The previous prime is 72826141. The next prime is 72826153. The reversal of 72826145 is 54162827.

It is a cyclic number.

It is not a de Polignac number, because 72826145 - 2² = 72826141 is a prime.

It is a super-2 number, since 2×72826145² = 10607294791122050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is not an unprimeable number, because it can be changed into a prime (72826141) 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 in 31 ways as a sum of consecutive naturals, for example, 63941 + ... + 65069.

It is an arithmetic number, because the mean of its divisors is an integer number (3322200).

Almost surely, 2^72826145 is an apocalyptic number.

It is an amenable number.

72826145 is a deficient number, since it is larger than the sum of its proper divisors (33484255).

72826145 is a wasteful number, since it uses less digits than its factorization.

72826145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1257.

The product of its digits is 26880, while the sum is 35.

The square root of 72826145 is about 8533.8235861775. The cubic root of 72826145 is about 417.6018755298.

The spelling of 72826145 in words is "seventy-two million, eight hundred twenty-six thousand, one hundred forty-five".