72373151 has 2 divisors, whose sum is σ = 72373152. Its totient is φ = 72373150.

The previous prime is 72373139. The next prime is 72373153. The reversal of 72373151 is 15137327.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72373151 - 2¹⁸ = 72111007 is a prime.

Together with 72373153, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_4249433 and since 72373151 and 4249433 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72373153) 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 as a sum of consecutive naturals, namely, 36186575 + 36186576.

It is an arithmetic number, because the mean of its divisors is an integer number (36186576).

Almost surely, 2^72373151 is an apocalyptic number.

72373151 is a deficient number, since it is larger than the sum of its proper divisors (1).

72373151 is an equidigital number, since it uses as much as digits as its factorization.

72373151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4410, while the sum is 29.

The square root of 72373151 is about 8507.2410921520. The cubic root of 72373151 is about 416.7342167460.

The spelling of 72373151 in words is "seventy-two million, three hundred seventy-three thousand, one hundred fifty-one".