67023157 has 2 divisors, whose sum is σ = 67023158. Its totient is φ = 67023156.

The previous prime is 67023139. The next prime is 67023161. The reversal of 67023157 is 75132076.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65060356 + 1962801 = 8066^2 + 1401^2 .

It is a cyclic number.

It is not a de Polignac number, because 67023157 - 2⁷ = 67023029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67023167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33511578 + 33511579.

It is an arithmetic number, because the mean of its divisors is an integer number (33511579).

Almost surely, 2^67023157 is an apocalyptic number.

It is an amenable number.

67023157 is a deficient number, since it is larger than the sum of its proper divisors (1).

67023157 is an equidigital number, since it uses as much as digits as its factorization.

67023157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8820, while the sum is 31.

The square root of 67023157 is about 8186.7671885794. The cubic root of 67023157 is about 406.2015973260.

The spelling of 67023157 in words is "sixty-seven million, twenty-three thousand, one hundred fifty-seven".