72150151 has 4 divisors (see below), whose sum is σ = 72378072. Its totient is φ = 71922232.

The previous prime is 72150137. The next prime is 72150167. The reversal of 72150151 is 15105127.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15105127 = 157 ⋅96211.

It is a cyclic number.

It is not a de Polignac number, because 72150151 - 2¹¹ = 72148103 is a prime.

It is a super-3 number, since 3×72150151³ (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 (72150101) 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 3 ways as a sum of consecutive naturals, for example, 113485 + ... + 114118.

It is an arithmetic number, because the mean of its divisors is an integer number (18094518).

Almost surely, 2^72150151 is an apocalyptic number.

72150151 is a deficient number, since it is larger than the sum of its proper divisors (227921).

72150151 is a wasteful number, since it uses less digits than its factorization.

72150151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227920.

The product of its (nonzero) digits is 350, while the sum is 22.

The square root of 72150151 is about 8494.1244987344. The cubic root of 72150151 is about 416.3057551710.

Adding to 72150151 its reverse (15105127), we get a palindrome (87255278).

The spelling of 72150151 in words is "seventy-two million, one hundred fifty thousand, one hundred fifty-one".