1513125144505 has 8 divisors (see below), whose sum is σ = 1955423263752. Its totient is φ = 1117384722048.

The previous prime is 1513125144491. The next prime is 1513125144541. The reversal of 1513125144505 is 5054415213151.

It can be written as a sum of positive squares in 4 ways, for example, as 123489690921 + 1389635453584 = 351411^2 + 1178828^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1513125144505 - 2³³ = 1504535209913 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11639424124 + ... + 11639424253.

It is an arithmetic number, because the mean of its divisors is an integer number (244427907969).

Almost surely, 2^{1513125144505} is an apocalyptic number.

It is an amenable number.

1513125144505 is a deficient number, since it is larger than the sum of its proper divisors (442298119247).

1513125144505 is a wasteful number, since it uses less digits than its factorization.

1513125144505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23278848395.

The product of its (nonzero) digits is 60000, while the sum is 37.

The spelling of 1513125144505 in words is "one trillion, five hundred thirteen billion, one hundred twenty-five million, one hundred forty-four thousand, five hundred five".