145663051 has 4 divisors (see below), whose sum is σ = 146267704. Its totient is φ = 145058400.

The previous prime is 145663039. The next prime is 145663061. The reversal of 145663051 is 150366541.

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

It is a cyclic number.

It is not a de Polignac number, because 145663051 - 2⁵ = 145663019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145663061) 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, 301965 + ... + 302446.

It is an arithmetic number, because the mean of its divisors is an integer number (36566926).

Almost surely, 2^145663051 is an apocalyptic number.

145663051 is a deficient number, since it is larger than the sum of its proper divisors (604653).

145663051 is an equidigital number, since it uses as much as digits as its factorization.

145663051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604652.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 145663051 is about 12069.0948707846. The cubic root of 145663051 is about 526.1583505952.

The spelling of 145663051 in words is "one hundred forty-five million, six hundred sixty-three thousand, fifty-one".