1533136949 has 2 divisors, whose sum is σ = 1533136950. Its totient is φ = 1533136948.

The previous prime is 1533136931. The next prime is 1533137003. The reversal of 1533136949 is 9496313351.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 849314449 + 683822500 = 29143^2 + 26150^2 .

It is a cyclic number.

It is not a de Polignac number, because 1533136949 - 2²⁰ = 1532088373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1533136349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 766568474 + 766568475.

It is an arithmetic number, because the mean of its divisors is an integer number (766568475).

Almost surely, 2^1533136949 is an apocalyptic number.

It is an amenable number.

1533136949 is a deficient number, since it is larger than the sum of its proper divisors (1).

1533136949 is an equidigital number, since it uses as much as digits as its factorization.

1533136949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 262440, while the sum is 44.

The square root of 1533136949 is about 39155.2927329116. The cubic root of 1533136949 is about 1153.0823294546.

The spelling of 1533136949 in words is "one billion, five hundred thirty-three million, one hundred thirty-six thousand, nine hundred forty-nine".