1537982057 has 2 divisors, whose sum is σ = 1537982058. Its totient is φ = 1537982056.

The previous prime is 1537982029. The next prime is 1537982111. The reversal of 1537982057 is 7502897351.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1455880336 + 82101721 = 38156^2 + 9061^2 .

It is a cyclic number.

It is not a de Polignac number, because 1537982057 - 2⁸ = 1537981801 is a prime.

It is not a weakly prime, because it can be changed into another prime (1537982557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 768991028 + 768991029.

It is an arithmetic number, because the mean of its divisors is an integer number (768991029).

Almost surely, 2^1537982057 is an apocalyptic number.

It is an amenable number.

1537982057 is a deficient number, since it is larger than the sum of its proper divisors (1).

1537982057 is an equidigital number, since it uses as much as digits as its factorization.

1537982057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 529200, while the sum is 47.

The square root of 1537982057 is about 39217.1143380030. The cubic root of 1537982057 is about 1154.2957312715.

The spelling of 1537982057 in words is "one billion, five hundred thirty-seven million, nine hundred eighty-two thousand, fifty-seven".