902143531442 has 8 divisors (see below), whose sum is σ = 1369519096176. Its totient is φ = 445637166052.

The previous prime is 902143531441. The next prime is 902143531483. The reversal of 902143531442 is 244135341209.

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

It is a junction number, because it is equal to n+sod(n) for n = 902143531396 and 902143531405.

It is not an unprimeable number, because it can be changed into a prime (902143531441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2717299628 + ... + 2717299959.

It is an arithmetic number, because the mean of its divisors is an integer number (171189887022).

Almost surely, 2^902143531442 is an apocalyptic number.

902143531442 is a deficient number, since it is larger than the sum of its proper divisors (467375564734).

902143531442 is a wasteful number, since it uses less digits than its factorization.

902143531442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5434599672.

The product of its (nonzero) digits is 103680, while the sum is 38.

The spelling of 902143531442 in words is "nine hundred two billion, one hundred forty-three million, five hundred thirty-one thousand, four hundred forty-two".