1520083947 has 16 divisors (see below), whose sum is σ = 2034928160. Its totient is φ = 1009324800.

The previous prime is 1520083907. The next prime is 1520083973. The reversal of 1520083947 is 7493800251.

It is not a de Polignac number, because 1520083947 - 2⁷ = 1520083819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1520083907) 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, 1150047 + ... + 1151367.

It is an arithmetic number, because the mean of its divisors is an integer number (127183010).

Almost surely, 2^1520083947 is an apocalyptic number.

1520083947 is a deficient number, since it is larger than the sum of its proper divisors (514844213).

1520083947 is a wasteful number, since it uses less digits than its factorization.

1520083947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2574.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 1520083947 is about 38988.2539619306. The cubic root of 1520083947 is about 1149.8005821828.

The spelling of 1520083947 in words is "one billion, five hundred twenty million, eighty-three thousand, nine hundred forty-seven".