145642141 has 8 divisors (see below), whose sum is σ = 152288640. Its totient is φ = 139021872.

The previous prime is 145642139. The next prime is 145642151. The reversal of 145642141 is 141246541.

145642141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145642141 - 2¹ = 145642139 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 (145642151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5275 + ... + 17863.

It is an arithmetic number, because the mean of its divisors is an integer number (19036080).

Almost surely, 2^145642141 is an apocalyptic number.

It is an amenable number.

145642141 is a deficient number, since it is larger than the sum of its proper divisors (6646499).

145642141 is a wasteful number, since it uses less digits than its factorization.

145642141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13115.

The product of its digits is 3840, while the sum is 28.

The square root of 145642141 is about 12068.2285775502. The cubic root of 145642141 is about 526.1331726302.

Adding to 145642141 its reverse (141246541), we get a palindrome (286888682).

The spelling of 145642141 in words is "one hundred forty-five million, six hundred forty-two thousand, one hundred forty-one".