72701245 has 8 divisors (see below), whose sum is σ = 89097984. Its totient is φ = 56923344.

The previous prime is 72701243. The next prime is 72701249. The reversal of 72701245 is 54210727.

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 72701245 - 2¹ = 72701243 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 (72701243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154449 + ... + 154918.

It is an arithmetic number, because the mean of its divisors is an integer number (11137248).

Almost surely, 2^72701245 is an apocalyptic number.

It is an amenable number.

72701245 is a deficient number, since it is larger than the sum of its proper divisors (16396739).

72701245 is a wasteful number, since it uses less digits than its factorization.

72701245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309419.

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 72701245 is about 8526.5025068899. The cubic root of 72701245 is about 417.3630038045.

It can be divided in two parts, 7270 and 1245, that added together give a triangular number (8515 = T₁₃₀).

The spelling of 72701245 in words is "seventy-two million, seven hundred one thousand, two hundred forty-five".