1553042142 has 12 divisors (see below), whose sum is σ = 3364924680. Its totient is φ = 517680708.

The previous prime is 1553042129. The next prime is 1553042147. The reversal of 1553042142 is 2412403551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1553042147) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43140042 + ... + 43140077.

It is an arithmetic number, because the mean of its divisors is an integer number (280410390).

Almost surely, 2^1553042142 is an apocalyptic number.

1553042142 is an abundant number, since it is smaller than the sum of its proper divisors (1811882538).

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

1553042142 is a wasteful number, since it uses less digits than its factorization.

1553042142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86280127 (or 86280124 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1553042142 is about 39408.6556735954. The cubic root of 1553042142 is about 1158.0511624240.

Adding to 1553042142 its reverse (2412403551), we get a palindrome (3965445693).

The spelling of 1553042142 in words is "one billion, five hundred fifty-three million, forty-two thousand, one hundred forty-two".