145646501 has 16 divisors (see below), whose sum is σ = 195554688. Its totient is φ = 104760000.

The previous prime is 145646483. The next prime is 145646503. The reversal of 145646501 is 105646541.

145646501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145646501 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145646503) 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, 71750 + ... + 73751.

It is an arithmetic number, because the mean of its divisors is an integer number (12222168).

Almost surely, 2^145646501 is an apocalyptic number.

145646501 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

145646501 is a deficient number, since it is larger than the sum of its proper divisors (49908187).

145646501 is a wasteful number, since it uses less digits than its factorization.

145646501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145532.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 145646501 is about 12068.4092157997. The cubic root of 145646501 is about 526.1384227538.

It can be divided in two parts, 145 and 646501, that added together give a palindrome (646646).

The spelling of 145646501 in words is "one hundred forty-five million, six hundred forty-six thousand, five hundred one".