1520053734 has 16 divisors (see below), whose sum is σ = 3144939120. Its totient is φ = 489212640.

The previous prime is 1520053699. The next prime is 1520053781. The reversal of 1520053734 is 4373500251.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 4367797 + ... + 4368144.

It is an arithmetic number, because the mean of its divisors is an integer number (196558695).

Almost surely, 2^1520053734 is an apocalyptic number.

1520053734 is an abundant number, since it is smaller than the sum of its proper divisors (1624885386).

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

1520053734 is a wasteful number, since it uses less digits than its factorization.

1520053734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8735975.

The product of its (nonzero) digits is 12600, while the sum is 30.

The square root of 1520053734 is about 38987.8664971552. The cubic root of 1520053734 is about 1149.7929643677.

Adding to 1520053734 its reverse (4373500251), we get a palindrome (5893553985).

The spelling of 1520053734 in words is "one billion, five hundred twenty million, fifty-three thousand, seven hundred thirty-four".