145205142 has 16 divisors (see below), whose sum is σ = 291161520. Its totient is φ = 48276512.

The previous prime is 145205129. The next prime is 145205161. The reversal of 145205142 is 241502541.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28773 + ... + 33440.

It is an arithmetic number, because the mean of its divisors is an integer number (18197595).

Almost surely, 2^145205142 is an apocalyptic number.

145205142 is an abundant number, since it is smaller than the sum of its proper divisors (145956378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145205142 is a wasteful number, since it uses less digits than its factorization.

145205142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62607.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 145205142 is about 12050.1096260573. The cubic root of 145205142 is about 525.6064248755.

Adding to 145205142 its reverse (241502541), we get a palindrome (386707683).

The spelling of 145205142 in words is "one hundred forty-five million, two hundred five thousand, one hundred forty-two".