72237001 has 2 divisors, whose sum is σ = 72237002. Its totient is φ = 72237000.

The previous prime is 72236981. The next prime is 72237007. The reversal of 72237001 is 10073227.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41267776 + 30969225 = 6424^2 + 5565^2 .

It is a cyclic number.

It is not a de Polignac number, because 72237001 - 2²⁵ = 38682569 is a prime.

It is not a weakly prime, because it can be changed into another prime (72237007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36118500 + 36118501.

It is an arithmetic number, because the mean of its divisors is an integer number (36118501).

Almost surely, 2^72237001 is an apocalyptic number.

It is an amenable number.

72237001 is a deficient number, since it is larger than the sum of its proper divisors (1).

72237001 is an equidigital number, since it uses as much as digits as its factorization.

72237001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 588, while the sum is 22.

The square root of 72237001 is about 8499.2353185448. The cubic root of 72237001 is about 416.4727294438.

The spelling of 72237001 in words is "seventy-two million, two hundred thirty-seven thousand, one".