1031404142 has 4 divisors (see below), whose sum is σ = 1547106216. Its totient is φ = 515702070.

The previous prime is 1031404133. The next prime is 1031404147. The reversal of 1031404142 is 2414041301.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031404147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 257851034 + ... + 257851037.

It is an arithmetic number, because the mean of its divisors is an integer number (386776554).

Almost surely, 2^1031404142 is an apocalyptic number.

1031404142 is a deficient number, since it is larger than the sum of its proper divisors (515702074).

1031404142 is an equidigital number, since it uses as much as digits as its factorization.

1031404142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515702073.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1031404142 is about 32115.4813446724. The cubic root of 1031404142 is about 1010.3603400069.

Adding to 1031404142 its reverse (2414041301), we get a palindrome (3445445443).

The spelling of 1031404142 in words is "one billion, thirty-one million, four hundred four thousand, one hundred forty-two".