1513697144 has 8 divisors (see below), whose sum is σ = 2838182160. Its totient is φ = 756848568.

The previous prime is 1513697123. The next prime is 1513697147. The reversal of 1513697144 is 4417963151.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1513697147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94606064 + ... + 94606079.

It is an arithmetic number, because the mean of its divisors is an integer number (354772770).

Almost surely, 2^1513697144 is an apocalyptic number.

It is an amenable number.

1513697144 is a deficient number, since it is larger than the sum of its proper divisors (1324485016).

1513697144 is a wasteful number, since it uses less digits than its factorization.

1513697144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189212149 (or 189212145 counting only the distinct ones).

The product of its digits is 90720, while the sum is 41.

The square root of 1513697144 is about 38906.2609871470. The cubic root of 1513697144 is about 1148.1879829109.

The spelling of 1513697144 in words is "one billion, five hundred thirteen million, six hundred ninety-seven thousand, one hundred forty-four".