1650015145 has 16 divisors (see below), whose sum is σ = 2045187072. Its totient is φ = 1276620480.

The previous prime is 1650015139. The next prime is 1650015149. The reversal of 1650015145 is 5415100561.

It is a happy number.

It is not a de Polignac number, because 1650015145 - 2³ = 1650015137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1650015149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 385839 + ... + 390091.

It is an arithmetic number, because the mean of its divisors is an integer number (127824192).

Almost surely, 2^1650015145 is an apocalyptic number.

It is an amenable number.

1650015145 is a deficient number, since it is larger than the sum of its proper divisors (395171927).

1650015145 is a wasteful number, since it uses less digits than its factorization.

1650015145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6792.

The product of its (nonzero) digits is 3000, while the sum is 28.

The square root of 1650015145 is about 40620.3784448151. The cubic root of 1650015145 is about 1181.6693658762.

The spelling of 1650015145 in words is "one billion, six hundred fifty million, fifteen thousand, one hundred forty-five".