72903151 has 2 divisors, whose sum is σ = 72903152. Its totient is φ = 72903150.

The previous prime is 72903139. The next prime is 72903161. The reversal of 72903151 is 15130927.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72903151 - 2¹⁷ = 72772079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72903101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36451575 + 36451576.

It is an arithmetic number, because the mean of its divisors is an integer number (36451576).

Almost surely, 2^72903151 is an apocalyptic number.

72903151 is a deficient number, since it is larger than the sum of its proper divisors (1).

72903151 is an equidigital number, since it uses as much as digits as its factorization.

72903151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 72903151 is about 8538.3342052183. The cubic root of 72903151 is about 417.7490137230.

The spelling of 72903151 in words is "seventy-two million, nine hundred three thousand, one hundred fifty-one".