1517087145 has 32 divisors (see below), whose sum is σ = 2863595520. Its totient is φ = 671152320.

The previous prime is 1517087137. The next prime is 1517087149. The reversal of 1517087145 is 5417807151.

It is not a de Polignac number, because 1517087145 - 2³ = 1517087137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1517087149) 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 in 31 ways as a sum of consecutive naturals, for example, 229785 + ... + 236294.

It is an arithmetic number, because the mean of its divisors is an integer number (89487360).

Almost surely, 2^1517087145 is an apocalyptic number.

1517087145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1517087145 is a deficient number, since it is larger than the sum of its proper divisors (1346508375).

1517087145 is a wasteful number, since it uses less digits than its factorization.

1517087145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466125.

The product of its (nonzero) digits is 39200, while the sum is 39.

The square root of 1517087145 is about 38949.8028878196. The cubic root of 1517087145 is about 1149.0444854429.

The spelling of 1517087145 in words is "one billion, five hundred seventeen million, eighty-seven thousand, one hundred forty-five".