145650545 has 4 divisors (see below), whose sum is σ = 174780660. Its totient is φ = 116520432.

The previous prime is 145650541. The next prime is 145650569. The reversal of 145650545 is 545056541.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 115433536 + 30217009 = 10744^2 + 5497^2 .

It is a cyclic number.

It is not a de Polignac number, because 145650545 - 2² = 145650541 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (145650541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14565050 + ... + 14565059.

It is an arithmetic number, because the mean of its divisors is an integer number (43695165).

Almost surely, 2^145650545 is an apocalyptic number.

It is an amenable number.

145650545 is a deficient number, since it is larger than the sum of its proper divisors (29130115).

145650545 is an equidigital number, since it uses as much as digits as its factorization.

145650545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29130114.

The product of its (nonzero) digits is 60000, while the sum is 35.

The square root of 145650545 is about 12068.5767595023. The cubic root of 145650545 is about 526.1432922703.

The spelling of 145650545 in words is "one hundred forty-five million, six hundred fifty thousand, five hundred forty-five".