145636655 has 4 divisors (see below), whose sum is σ = 174763992. Its totient is φ = 116509320.

The previous prime is 145636651. The next prime is 145636661. The reversal of 145636655 is 556636541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 556636541 = 41 ⋅13576501.

It is not a de Polignac number, because 145636655 - 2² = 145636651 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145636651) 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, 14563661 + ... + 14563670.

It is an arithmetic number, because the mean of its divisors is an integer number (43690998).

Almost surely, 2^145636655 is an apocalyptic number.

145636655 is a deficient number, since it is larger than the sum of its proper divisors (29127337).

145636655 is an equidigital number, since it uses as much as digits as its factorization.

145636655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29127336.

The product of its digits is 324000, while the sum is 41.

The square root of 145636655 is about 12068.0012843884. The cubic root of 145636655 is about 526.1265664771.

The spelling of 145636655 in words is "one hundred forty-five million, six hundred thirty-six thousand, six hundred fifty-five".