1513390823 has 12 divisors (see below), whose sum is σ = 1837018800. Its totient is φ = 1240791552.

The previous prime is 1513390817. The next prime is 1513390859. The reversal of 1513390823 is 3280933151.

It is a happy number.

It is not a de Polignac number, because 1513390823 - 2⁶ = 1513390759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1513390873) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 670298 + ... + 672551.

It is an arithmetic number, because the mean of its divisors is an integer number (153084900).

Almost surely, 2^1513390823 is an apocalyptic number.

1513390823 is a deficient number, since it is larger than the sum of its proper divisors (323627977).

1513390823 is a wasteful number, since it uses less digits than its factorization.

1513390823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1342886 (or 1342879 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 1513390823 is about 38902.3241336556. The cubic root of 1513390823 is about 1148.1105262413.

The spelling of 1513390823 in words is "one billion, five hundred thirteen million, three hundred ninety thousand, eight hundred twenty-three".