72151653 has 8 divisors (see below), whose sum is σ = 109945408. Its totient is φ = 41229504.

The previous prime is 72151649. The next prime is 72151669. The reversal of 72151653 is 35615127.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72151653 - 2² = 72151649 is a prime.

It is a super-2 number, since 2×72151653² = 10411722061264818, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 72151653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72151633) 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 7 ways as a sum of consecutive naturals, for example, 1717876 + ... + 1717917.

It is an arithmetic number, because the mean of its divisors is an integer number (13743176).

Almost surely, 2^72151653 is an apocalyptic number.

It is an amenable number.

72151653 is a deficient number, since it is larger than the sum of its proper divisors (37793755).

72151653 is a wasteful number, since it uses less digits than its factorization.

72151653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3435803.

The product of its digits is 6300, while the sum is 30.

The square root of 72151653 is about 8494.2129123304. The cubic root of 72151653 is about 416.3086439933.

The spelling of 72151653 in words is "seventy-two million, one hundred fifty-one thousand, six hundred fifty-three".