1445642115 has 32 divisors (see below), whose sum is σ = 2423748096. Its totient is φ = 734384640.

The previous prime is 1445642101. The next prime is 1445642123. The reversal of 1445642115 is 5112465441.

It is not a de Polignac number, because 1445642115 - 2¹³ = 1445633923 is a prime.

It is a super-2 number, since 2×1445642115² = 4179762249323346450, which contains 22 as substring.

It is an unprimeable number.

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, 74452 + ... + 91838.

It is an arithmetic number, because the mean of its divisors is an integer number (75742128).

Almost surely, 2^1445642115 is an apocalyptic number.

1445642115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1445642115 is a deficient number, since it is larger than the sum of its proper divisors (978105981).

1445642115 is a wasteful number, since it uses less digits than its factorization.

1445642115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17659.

The product of its digits is 19200, while the sum is 33.

The square root of 1445642115 is about 38021.6006370063. The cubic root of 1445642115 is about 1130.7161552654.

The spelling of 1445642115 in words is "one billion, four hundred forty-five million, six hundred forty-two thousand, one hundred fifteen".