145662011 has 4 divisors (see below), whose sum is σ = 158904024. Its totient is φ = 132420000.

The previous prime is 145661993. The next prime is 145662031. The reversal of 145662011 is 110266541.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145662011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145662031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6620990 + ... + 6621011.

It is an arithmetic number, because the mean of its divisors is an integer number (39726006).

Almost surely, 2^145662011 is an apocalyptic number.

145662011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

145662011 is a deficient number, since it is larger than the sum of its proper divisors (13242013).

145662011 is a wasteful number, since it uses less digits than its factorization.

145662011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13242012.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 145662011 is about 12069.0517854552. The cubic root of 145662011 is about 526.1570983765.

The spelling of 145662011 in words is "one hundred forty-five million, six hundred sixty-two thousand, eleven".