40151601 has 12 divisors (see below), whose sum is σ = 66282112. Its totient is φ = 22943736.

The previous prime is 40151597. The next prime is 40151611. The reversal of 40151601 is 10615104.

It is not a de Polignac number, because 40151601 - 2² = 40151597 is a prime.

It is a super-2 number, since 2×40151601² = 3224302125726402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40151611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 318601 + ... + 318726.

Almost surely, 2^40151601 is an apocalyptic number.

It is an amenable number.

40151601 is a deficient number, since it is larger than the sum of its proper divisors (26130511).

40151601 is a wasteful number, since it uses less digits than its factorization.

40151601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637340 (or 637337 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 40151601 is about 6336.5290972267. The cubic root of 40151601 is about 342.4267014189.

Adding to 40151601 its reverse (10615104), we get a palindrome (50766705).

The spelling of 40151601 in words is "forty million, one hundred fifty-one thousand, six hundred one".