1358619049 has 2 divisors, whose sum is σ = 1358619050. Its totient is φ = 1358619048.

The previous prime is 1358619037. The next prime is 1358619109. The reversal of 1358619049 is 9409168531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1357554025 + 1065024 = 36845^2 + 1032^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1358619049 is a prime.

It is not a weakly prime, because it can be changed into another prime (1358619949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 679309524 + 679309525.

It is an arithmetic number, because the mean of its divisors is an integer number (679309525).

Almost surely, 2^1358619049 is an apocalyptic number.

It is an amenable number.

1358619049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1358619049 is an equidigital number, since it uses as much as digits as its factorization.

1358619049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 46.

The square root of 1358619049 is about 36859.4499280714. The cubic root of 1358619049 is about 1107.5565245199.

The spelling of 1358619049 in words is "one billion, three hundred fifty-eight million, six hundred nineteen thousand, forty-nine".