74272137 has 8 divisors (see below), whose sum is σ = 101332704. Its totient is φ = 48363168.

The previous prime is 74272127. The next prime is 74272199. The reversal of 74272137 is 73127247.

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

It is not a de Polignac number, because 74272137 - 2¹¹ = 74270089 is a prime.

It is a super-3 number, since 3×74272137³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 74272098 and 74272107.

It is not an unprimeable number, because it can be changed into a prime (74272117) 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, 287748 + ... + 288005.

It is an arithmetic number, because the mean of its divisors is an integer number (12666588).

Almost surely, 2^74272137 is an apocalyptic number.

It is an amenable number.

74272137 is a deficient number, since it is larger than the sum of its proper divisors (27060567).

74272137 is a wasteful number, since it uses less digits than its factorization.

74272137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575799.

The product of its digits is 16464, while the sum is 33.

The square root of 74272137 is about 8618.1283931025. The cubic root of 74272137 is about 420.3476656463.

The spelling of 74272137 in words is "seventy-four million, two hundred seventy-two thousand, one hundred thirty-seven".