72002151 has 12 divisors (see below), whose sum is σ = 112003528. Its totient is φ = 44308944.

The previous prime is 72002149. The next prime is 72002171. The reversal of 72002151 is 15120027.

It is not a de Polignac number, because 72002151 - 2¹ = 72002149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72002171) 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 11 ways as a sum of consecutive naturals, for example, 307585 + ... + 307818.

Almost surely, 2^72002151 is an apocalyptic number.

72002151 is a deficient number, since it is larger than the sum of its proper divisors (40001377).

72002151 is a wasteful number, since it uses less digits than its factorization.

72002151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615422 (or 615419 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 72002151 is about 8485.4081221825. The cubic root of 72002151 is about 416.0209074027.

Adding to 72002151 its reverse (15120027), we get a palindrome (87122178).

The spelling of 72002151 in words is "seventy-two million, two thousand, one hundred fifty-one".