1520687413 has 16 divisors (see below), whose sum is σ = 1834560000. Its totient is φ = 1258491696.

The previous prime is 1520687369. The next prime is 1520687437. The reversal of 1520687413 is 3147860251.

It is not a de Polignac number, because 1520687413 - 2¹³ = 1520679221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1520687453) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 66493 + ... + 86386.

It is an arithmetic number, because the mean of its divisors is an integer number (114660000).

Almost surely, 2^1520687413 is an apocalyptic number.

It is an amenable number.

1520687413 is a deficient number, since it is larger than the sum of its proper divisors (313872587).

1520687413 is an equidigital number, since it uses as much as digits as its factorization.

1520687413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152929 (or 152915 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 1520687413 is about 38995.9922684370. The cubic root of 1520687413 is about 1149.9527171486.

The spelling of 1520687413 in words is "one billion, five hundred twenty million, six hundred eighty-seven thousand, four hundred thirteen".