401156132 has 12 divisors (see below), whose sum is σ = 756025116. Its totient is φ = 185148960.

The previous prime is 401156083. The next prime is 401156141. The reversal of 401156132 is 231651104.

It can be written as a sum of positive squares in 2 ways, for example, as 251729956 + 149426176 = 15866^2 + 12224^2 .

It is a junction number, because it is equal to n+sod(n) for n = 401156098 and 401156107.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3857219 + ... + 3857322.

It is an arithmetic number, because the mean of its divisors is an integer number (63002093).

Almost surely, 2^401156132 is an apocalyptic number.

It is an amenable number.

401156132 is a deficient number, since it is larger than the sum of its proper divisors (354868984).

401156132 is a wasteful number, since it uses less digits than its factorization.

401156132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7714558 (or 7714556 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 401156132 is about 20028.8824451091. The cubic root of 401156132 is about 737.5154880210.

The spelling of 401156132 in words is "four hundred one million, one hundred fifty-six thousand, one hundred thirty-two".