72273061 has 16 divisors (see below), whose sum is σ = 86448384. Its totient is φ = 59076864.

The previous prime is 72273041. The next prime is 72273077. The reversal of 72273061 is 16037227.

It is not a de Polignac number, because 72273061 - 2¹⁹ = 71748773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72273031) 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 15 ways as a sum of consecutive naturals, for example, 95095 + ... + 95851.

It is an arithmetic number, because the mean of its divisors is an integer number (5403024).

Almost surely, 2^72273061 is an apocalyptic number.

It is an amenable number.

72273061 is a deficient number, since it is larger than the sum of its proper divisors (14175323).

72273061 is a wasteful number, since it uses less digits than its factorization.

72273061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1380.

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 72273061 is about 8501.3564211836. The cubic root of 72273061 is about 416.5420176118.

The spelling of 72273061 in words is "seventy-two million, two hundred seventy-three thousand, sixty-one".