1540063172 has 12 divisors (see below), whose sum is σ = 2695969836. Its totient is φ = 769786080.

The previous prime is 1540063123. The next prime is 1540063193. The reversal of 1540063172 is 2713600451.

It can be written as a sum of positive squares in 2 ways, for example, as 961372036 + 578691136 = 31006^2 + 24056^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46883 + ... + 72650.

It is an arithmetic number, because the mean of its divisors is an integer number (224664153).

Almost surely, 2^1540063172 is an apocalyptic number.

It is an amenable number.

1540063172 is a deficient number, since it is larger than the sum of its proper divisors (1155906664).

1540063172 is a wasteful number, since it uses less digits than its factorization.

1540063172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122758 (or 122756 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 1540063172 is about 39243.6386182525. The cubic root of 1540063172 is about 1154.8161403457.

The spelling of 1540063172 in words is "one billion, five hundred forty million, sixty-three thousand, one hundred seventy-two".