145294601 has 4 divisors (see below), whose sum is σ = 147285012. Its totient is φ = 143304192.

The previous prime is 145294561. The next prime is 145294607. The reversal of 145294601 is 106492541.

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 64384576 + 80910025 = 8024^2 + 8995^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145294601 is a prime.

It is a super-2 number, since 2×145294601² = 42221042159498402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145294607) 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, 995096 + ... + 995241.

It is an arithmetic number, because the mean of its divisors is an integer number (36821253).

Almost surely, 2^145294601 is an apocalyptic number.

It is an amenable number.

145294601 is a deficient number, since it is larger than the sum of its proper divisors (1990411).

145294601 is an equidigital number, since it uses as much as digits as its factorization.

145294601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1990410.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 145294601 is about 12053.8210124425. The cubic root of 145294601 is about 525.7143424778.

The spelling of 145294601 in words is "one hundred forty-five million, two hundred ninety-four thousand, six hundred one".