1040212142 has 4 divisors (see below), whose sum is σ = 1560318216. Its totient is φ = 520106070.

The previous prime is 1040212127. The next prime is 1040212177. The reversal of 1040212142 is 2412120401.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1040212142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260053034 + ... + 260053037.

It is an arithmetic number, because the mean of its divisors is an integer number (390079554).

Almost surely, 2^1040212142 is an apocalyptic number.

1040212142 is a deficient number, since it is larger than the sum of its proper divisors (520106074).

1040212142 is an equidigital number, since it uses as much as digits as its factorization.

1040212142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520106073.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1040212142 is about 32252.3199475635. The cubic root of 1040212142 is about 1013.2282881310.

Adding to 1040212142 its reverse (2412120401), we get a palindrome (3452332543).

The spelling of 1040212142 in words is "one billion, forty million, two hundred twelve thousand, one hundred forty-two".