1540073124 has 18 divisors (see below), whose sum is σ = 3892962710. Its totient is φ = 513357696.

The previous prime is 1540073107. The next prime is 1540073153. The reversal of 1540073124 is 4213700451.

It can be written as a sum of positive squares in only one way, i.e., 1507924224 + 32148900 = 38832^2 + 5670^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21389869 + ... + 21389940.

Almost surely, 2^1540073124 is an apocalyptic number.

It is an amenable number.

1540073124 is an abundant number, since it is smaller than the sum of its proper divisors (2352889586).

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

1540073124 is a wasteful number, since it uses less digits than its factorization.

1540073124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42779819 (or 42779814 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 1540073124 is about 39243.7654156683. The cubic root of 1540073124 is about 1154.8186278423.

Adding to 1540073124 its reverse (4213700451), we get a palindrome (5753773575).

The spelling of 1540073124 in words is "one billion, five hundred forty million, seventy-three thousand, one hundred twenty-four".