1016381537 has 2 divisors, whose sum is σ = 1016381538. Its totient is φ = 1016381536.

The previous prime is 1016381519. The next prime is 1016381549. The reversal of 1016381537 is 7351836101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 638623441 + 377758096 = 25271^2 + 19436^2 .

It is a cyclic number.

It is not a de Polignac number, because 1016381537 - 2²⁰ = 1015332961 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1016381497 and 1016381506.

It is not a weakly prime, because it can be changed into another prime (1016381507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 508190768 + 508190769.

It is an arithmetic number, because the mean of its divisors is an integer number (508190769).

Almost surely, 2^1016381537 is an apocalyptic number.

It is an amenable number.

1016381537 is a deficient number, since it is larger than the sum of its proper divisors (1).

1016381537 is an equidigital number, since it uses as much as digits as its factorization.

1016381537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 1016381537 is about 31880.7392793831. The cubic root of 1016381537 is about 1005.4309635719.

The spelling of 1016381537 in words is "one billion, sixteen million, three hundred eighty-one thousand, five hundred thirty-seven".