67773151 has 2 divisors, whose sum is σ = 67773152. Its totient is φ = 67773150.

The previous prime is 67773149. The next prime is 67773163. The reversal of 67773151 is 15137776.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 67773151 - 2¹ = 67773149 is a prime.

Together with 67773149, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 67773151.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67773191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33886575 + 33886576.

It is an arithmetic number, because the mean of its divisors is an integer number (33886576).

Almost surely, 2^67773151 is an apocalyptic number.

67773151 is a deficient number, since it is larger than the sum of its proper divisors (1).

67773151 is an equidigital number, since it uses as much as digits as its factorization.

67773151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30870, while the sum is 37.

The square root of 67773151 is about 8232.4450195552. The cubic root of 67773151 is about 407.7111224870.

The spelling of 67773151 in words is "sixty-seven million, seven hundred seventy-three thousand, one hundred fifty-one".