72703153 has 8 divisors (see below), whose sum is σ = 76795136. Its totient is φ = 68720400.

The previous prime is 72703151. The next prime is 72703199. The reversal of 72703153 is 35130727.

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

It is a cyclic number.

It is not a de Polignac number, because 72703153 - 2¹ = 72703151 is a prime.

It is a super-2 number, since 2×72703153² = 10571496912282818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72703151) 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, 25938 + ... + 28603.

It is an arithmetic number, because the mean of its divisors is an integer number (9599392).

Almost surely, 2^72703153 is an apocalyptic number.

It is an amenable number.

72703153 is a deficient number, since it is larger than the sum of its proper divisors (4091983).

72703153 is a wasteful number, since it uses less digits than its factorization.

72703153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54615.

The product of its (nonzero) digits is 4410, while the sum is 28.

The square root of 72703153 is about 8526.6143925945. The cubic root of 72703153 is about 417.3666549187.

The spelling of 72703153 in words is "seventy-two million, seven hundred three thousand, one hundred fifty-three".