142641404 has 12 divisors (see below), whose sum is σ = 252046704. Its totient is φ = 70628064.

The previous prime is 142641371. The next prime is 142641413. The reversal of 142641404 is 404146241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172697 + ... + 173520.

It is an arithmetic number, because the mean of its divisors is an integer number (21003892).

Almost surely, 2^142641404 is an apocalyptic number.

It is an amenable number.

142641404 is a deficient number, since it is larger than the sum of its proper divisors (109405300).

142641404 is a wasteful number, since it uses less digits than its factorization.

142641404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346324 (or 346322 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 142641404 is about 11943.2576795446. The cubic root of 142641404 is about 522.4946745182.

Adding to 142641404 its reverse (404146241), we get a palindrome (546787645).

The spelling of 142641404 in words is "one hundred forty-two million, six hundred forty-one thousand, four hundred four".