145502142 has 32 divisors (see below), whose sum is σ = 298166400. Its totient is φ = 47319648.

The previous prime is 145502111. The next prime is 145502143. The reversal of 145502142 is 241205541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145502143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47728 + ... + 50684.

It is an arithmetic number, because the mean of its divisors is an integer number (9317700).

Almost surely, 2^145502142 is an apocalyptic number.

145502142 is an abundant number, since it is smaller than the sum of its proper divisors (152664258).

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

145502142 is a wasteful number, since it uses less digits than its factorization.

145502142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3160.

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

The square root of 145502142 is about 12062.4268702446. The cubic root of 145502142 is about 525.9645361547.

Adding to 145502142 its reverse (241205541), we get a palindrome (386707683).

The spelling of 145502142 in words is "one hundred forty-five million, five hundred two thousand, one hundred forty-two".