1523002145 has 16 divisors (see below), whose sum is σ = 2089473408. Its totient is φ = 1043952000.

The previous prime is 1523002127. The next prime is 1523002219. The reversal of 1523002145 is 5412003251.

It is not a de Polignac number, because 1523002145 - 2²⁰ = 1521953569 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1523002145.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110645 + ... + 123645.

It is an arithmetic number, because the mean of its divisors is an integer number (130592088).

Almost surely, 2^1523002145 is an apocalyptic number.

It is an amenable number.

1523002145 is a deficient number, since it is larger than the sum of its proper divisors (566471263).

1523002145 is a wasteful number, since it uses less digits than its factorization.

1523002145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16360.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1523002145 is about 39025.6600841036. The cubic root of 1523002145 is about 1150.5358926457.

Adding to 1523002145 its reverse (5412003251), we get a palindrome (6935005396).

The spelling of 1523002145 in words is "one billion, five hundred twenty-three million, two thousand, one hundred forty-five".