72119471 has 4 divisors (see below), whose sum is σ = 73796712. Its totient is φ = 70442232.

The previous prime is 72119461. The next prime is 72119477. The reversal of 72119471 is 17491127.

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

It is a cyclic number.

It is not a de Polignac number, because 72119471 - 2¹⁸ = 71857327 is a prime.

It is a super-3 number, since 3×72119471³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72119477) 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, 838556 + ... + 838641.

It is an arithmetic number, because the mean of its divisors is an integer number (18449178).

Almost surely, 2^72119471 is an apocalyptic number.

72119471 is a deficient number, since it is larger than the sum of its proper divisors (1677241).

72119471 is a wasteful number, since it uses less digits than its factorization.

72119471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1677240.

The product of its digits is 3528, while the sum is 32.

The square root of 72119471 is about 8492.3183524877. The cubic root of 72119471 is about 416.2467390258.

The spelling of 72119471 in words is "seventy-two million, one hundred nineteen thousand, four hundred seventy-one".