67400101 has 2 divisors, whose sum is σ = 67400102. Its totient is φ = 67400100.

The previous prime is 67400071. The next prime is 67400111. The reversal of 67400101 is 10100476.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39363076 + 28037025 = 6274^2 + 5295^2 .

It is a cyclic number.

It is not a de Polignac number, because 67400101 - 2²³ = 59011493 is a prime.

It is a super-2 number, since 2×67400101² = 9085547229620402, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67400111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33700050 + 33700051.

It is an arithmetic number, because the mean of its divisors is an integer number (33700051).

Almost surely, 2^67400101 is an apocalyptic number.

It is an amenable number.

67400101 is a deficient number, since it is larger than the sum of its proper divisors (1).

67400101 is an equidigital number, since it uses as much as digits as its factorization.

67400101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 67400101 is about 8209.7564519296. The cubic root of 67400101 is about 406.9616784224.

Adding to 67400101 its reverse (10100476), we get a palindrome (77500577).

The spelling of 67400101 in words is "sixty-seven million, four hundred thousand, one hundred one".