67201157 has 4 divisors (see below), whose sum is σ = 70738080. Its totient is φ = 63664236.

The previous prime is 67201129. The next prime is 67201159. The reversal of 67201157 is 75110276.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 67201157 - 2⁶ = 67201093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67201159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1768433 + ... + 1768470.

It is an arithmetic number, because the mean of its divisors is an integer number (17684520).

Almost surely, 2^67201157 is an apocalyptic number.

It is an amenable number.

67201157 is a deficient number, since it is larger than the sum of its proper divisors (3536923).

67201157 is a wasteful number, since it uses less digits than its factorization.

67201157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3536922.

The product of its (nonzero) digits is 2940, while the sum is 29.

The square root of 67201157 is about 8197.6311822380. The cubic root of 67201157 is about 406.5608759875.

The spelling of 67201157 in words is "sixty-seven million, two hundred one thousand, one hundred fifty-seven".