1520013746 has 32 divisors (see below), whose sum is σ = 2399604480. Its totient is φ = 721353600.

The previous prime is 1520013727. The next prime is 1520013749. The reversal of 1520013746 is 6473100251.

It is not an unprimeable number, because it can be changed into a prime (1520013749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 696485 + ... + 698663.

It is an arithmetic number, because the mean of its divisors is an integer number (74987640).

Almost surely, 2^1520013746 is an apocalyptic number.

1520013746 is a deficient number, since it is larger than the sum of its proper divisors (879590734).

1520013746 is a wasteful number, since it uses less digits than its factorization.

1520013746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2450.

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

The square root of 1520013746 is about 38987.3536675676. The cubic root of 1520013746 is about 1149.7828817583.

Adding to 1520013746 its reverse (6473100251), we get a palindrome (7993113997).

The spelling of 1520013746 in words is "one billion, five hundred twenty million, thirteen thousand, seven hundred forty-six".