1405132144 has 40 divisors (see below), whose sum is σ = 3104332560. Its totient is φ = 610372608.

The previous prime is 1405132139. The next prime is 1405132153. The reversal of 1405132144 is 4412315041.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195154 + ... + 202225.

It is an arithmetic number, because the mean of its divisors is an integer number (77608314).

Almost surely, 2^1405132144 is an apocalyptic number.

It is an amenable number.

1405132144 is an abundant number, since it is smaller than the sum of its proper divisors (1699200416).

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

1405132144 is a wasteful number, since it uses less digits than its factorization.

1405132144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397417 (or 397411 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 1405132144 is about 37485.0922901358. The cubic root of 1405132144 is about 1120.0542448217.

Adding to 1405132144 its reverse (4412315041), we get a palindrome (5817447185).

The spelling of 1405132144 in words is "one billion, four hundred five million, one hundred thirty-two thousand, one hundred forty-four".