400147101 has 32 divisors (see below), whose sum is σ = 615383040. Its totient is φ = 256705200.

The previous prime is 400147081. The next prime is 400147109. The reversal of 400147101 is 101741004.

It is not a de Polignac number, because 400147101 - 2¹⁰ = 400146077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400147109) 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 in 31 ways as a sum of consecutive naturals, for example, 158616 + ... + 161118.

It is an arithmetic number, because the mean of its divisors is an integer number (19230720).

Almost surely, 2^400147101 is an apocalyptic number.

It is an amenable number.

400147101 is a deficient number, since it is larger than the sum of its proper divisors (215235939).

400147101 is a wasteful number, since it uses less digits than its factorization.

400147101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2734 (or 2728 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 400147101 is about 20003.6771869574. The cubic root of 400147101 is about 736.8966094447.

Adding to 400147101 its reverse (101741004), we get a palindrome (501888105).

The spelling of 400147101 in words is "four hundred million, one hundred forty-seven thousand, one hundred one".