72269101 has 4 divisors (see below), whose sum is σ = 74031804. Its totient is φ = 70506400.

The previous prime is 72269089. The next prime is 72269107. The reversal of 72269101 is 10196227.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4206601 + 68062500 = 2051^2 + 8250^2 .

It is a cyclic number.

It is not a de Polignac number, because 72269101 - 2⁵ = 72269069 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72269101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72269107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 881290 + ... + 881371.

It is an arithmetic number, because the mean of its divisors is an integer number (18507951).

Almost surely, 2^72269101 is an apocalyptic number.

It is an amenable number.

72269101 is a deficient number, since it is larger than the sum of its proper divisors (1762703).

72269101 is a wasteful number, since it uses less digits than its factorization.

72269101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1762702.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 72269101 is about 8501.1235139833. The cubic root of 72269101 is about 416.5344097217.

The spelling of 72269101 in words is "seventy-two million, two hundred sixty-nine thousand, one hundred one".