1540163432 has 8 divisors (see below), whose sum is σ = 2887806450. Its totient is φ = 770081712.

The previous prime is 1540163419. The next prime is 1540163437. The reversal of 1540163432 is 2343610451.

It can be written as a sum of positive squares in only one way, i.e., 1375964836 + 164198596 = 37094^2 + 12814^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 1540163395 and 1540163404.

It is not an unprimeable number, because it can be changed into a prime (1540163437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96260207 + ... + 96260222.

Almost surely, 2^1540163432 is an apocalyptic number.

It is an amenable number.

1540163432 is a deficient number, since it is larger than the sum of its proper divisors (1347643018).

1540163432 is a wasteful number, since it uses less digits than its factorization.

1540163432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192520435 (or 192520431 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 1540163432 is about 39244.9160019486. The cubic root of 1540163432 is about 1154.8411997839.

Adding to 1540163432 its reverse (2343610451), we get a palindrome (3883773883).

The spelling of 1540163432 in words is "one billion, five hundred forty million, one hundred sixty-three thousand, four hundred thirty-two".