1535513145 has 16 divisors (see below), whose sum is σ = 2462208000. Its totient is φ = 817144704.

The previous prime is 1535513131. The next prime is 1535513149. The reversal of 1535513145 is 5413155351.

It is not a de Polignac number, because 1535513145 - 2⁴ = 1535513129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1535513149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105145 + ... + 118854.

It is an arithmetic number, because the mean of its divisors is an integer number (153888000).

Almost surely, 2^1535513145 is an apocalyptic number.

1535513145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1535513145 is a deficient number, since it is larger than the sum of its proper divisors (926694855).

1535513145 is a wasteful number, since it uses less digits than its factorization.

1535513145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224464.

The product of its digits is 22500, while the sum is 33.

The square root of 1535513145 is about 39185.6242134791. The cubic root of 1535513145 is about 1153.6777394726.

Adding to 1535513145 its reverse (5413155351), we get a palindrome (6948668496).

The spelling of 1535513145 in words is "one billion, five hundred thirty-five million, five hundred thirteen thousand, one hundred forty-five".