145700665 has 16 divisors (see below), whose sum is σ = 191378880. Its totient is φ = 105606720.

The previous prime is 145700663. The next prime is 145700671. The reversal of 145700665 is 566007541.

It is a happy number.

It is not a de Polignac number, because 145700665 - 2¹ = 145700663 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145700665.

It is not an unprimeable number, because it can be changed into a prime (145700663) 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, 12571 + ... + 21199.

It is an arithmetic number, because the mean of its divisors is an integer number (11961180).

Almost surely, 2^145700665 is an apocalyptic number.

It is an amenable number.

145700665 is a deficient number, since it is larger than the sum of its proper divisors (45678215).

145700665 is a wasteful number, since it uses less digits than its factorization.

145700665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8952.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 145700665 is about 12070.6530477849. The cubic root of 145700665 is about 526.2036359685.

The spelling of 145700665 in words is "one hundred forty-five million, seven hundred thousand, six hundred sixty-five".