1401164532 has 36 divisors (see below), whose sum is σ = 3553176900. Its totient is φ = 465558912.

The previous prime is 1401164447. The next prime is 1401164543. The reversal of 1401164532 is 2354611041.

It is a happy number.

1401164532 is a `hidden beast` number, since 1 + 4 + 0 + 11 + 645 + 3 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 585833616 + 815330916 = 24204^2 + 28554^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 1401164496 and 1401164505.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 50907 + ... + 73442.

Almost surely, 2^1401164532 is an apocalyptic number.

1401164532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1401164532 is an abundant number, since it is smaller than the sum of its proper divisors (2152012368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1401164532 is a wasteful number, since it uses less digits than its factorization.

1401164532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124672 (or 124667 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 1401164532 is about 37432.1323464213. The cubic root of 1401164532 is about 1118.9990344684. Note that the first 3 decimals are identical.

Adding to 1401164532 its reverse (2354611041), we get a palindrome (3755775573).

The spelling of 1401164532 in words is "one billion, four hundred one million, one hundred sixty-four thousand, five hundred thirty-two".