145142011 has 4 divisors (see below), whose sum is σ = 165876592. Its totient is φ = 124407432.

The previous prime is 145141999. The next prime is 145142021. The reversal of 145142011 is 110241541.

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 145142011 - 2⁵ = 145141979 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145142011.

It is not an unprimeable number, because it can be changed into a prime (145142021) 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, 10367280 + ... + 10367293.

It is an arithmetic number, because the mean of its divisors is an integer number (41469148).

Almost surely, 2^145142011 is an apocalyptic number.

145142011 is a deficient number, since it is larger than the sum of its proper divisors (20734581).

145142011 is an equidigital number, since it uses as much as digits as its factorization.

145142011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20734580.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 145142011 is about 12047.4898215354. The cubic root of 145142011 is about 525.5302410050.

Adding to 145142011 its reverse (110241541), we get a palindrome (255383552).

The spelling of 145142011 in words is "one hundred forty-five million, one hundred forty-two thousand, eleven".