1535942801 has 4 divisors (see below), whose sum is σ = 1536150000. Its totient is φ = 1535735604.

The previous prime is 1535942791. The next prime is 1535942803. The reversal of 1535942801 is 1082495351.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1082495351 = 7 ⋅154642193.

It is a cyclic number.

It is not a de Polignac number, because 1535942801 - 2¹⁰ = 1535941777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1535942803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92051 + ... + 107448.

It is an arithmetic number, because the mean of its divisors is an integer number (384037500).

Almost surely, 2^1535942801 is an apocalyptic number.

It is an amenable number.

1535942801 is a deficient number, since it is larger than the sum of its proper divisors (207199).

1535942801 is an equidigital number, since it uses as much as digits as its factorization.

1535942801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207198.

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 1535942801 is about 39191.1061466757. The cubic root of 1535942801 is about 1153.7853339791.

The spelling of 1535942801 in words is "one billion, five hundred thirty-five million, nine hundred forty-two thousand, eight hundred one".