40730101 has 2 divisors, whose sum is σ = 40730102. Its totient is φ = 40730100.

The previous prime is 40730099. The next prime is 40730111. The reversal of 40730101 is 10103704.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34222500 + 6507601 = 5850^2 + 2551^2 .

It is a cyclic number.

It is not a de Polignac number, because 40730101 - 2¹ = 40730099 is a prime.

It is a super-2 number, since 2×40730101² = 3317882254940402, which contains 22 as substring.

Together with 40730099, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40730111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20365050 + 20365051.

It is an arithmetic number, because the mean of its divisors is an integer number (20365051).

Almost surely, 2^40730101 is an apocalyptic number.

It is an amenable number.

40730101 is a deficient number, since it is larger than the sum of its proper divisors (1).

40730101 is an equidigital number, since it uses as much as digits as its factorization.

40730101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 40730101 is about 6382.0138671112. The cubic root of 40730101 is about 344.0634150486.

Adding to 40730101 its reverse (10103704), we get a palindrome (50833805).

The spelling of 40730101 in words is "forty million, seven hundred thirty thousand, one hundred one".