1061216142 has 32 divisors (see below), whose sum is σ = 2428849152. Its totient is φ = 302803104.

The previous prime is 1061216131. The next prime is 1061216173. The reversal of 1061216142 is 2416121601.

It is a happy number.

It is a super-2 number, since 2×1061216142² = 2252359400082728328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16123 + ... + 48809.

It is an arithmetic number, because the mean of its divisors is an integer number (75901536).

Almost surely, 2^1061216142 is an apocalyptic number.

1061216142 is an abundant number, since it is smaller than the sum of its proper divisors (1367633010).

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

1061216142 is a wasteful number, since it uses less digits than its factorization.

1061216142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33472.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 1061216142 is about 32576.3125905926. The cubic root of 1061216142 is about 1020.0026086054.

Adding to 1061216142 its reverse (2416121601), we get a palindrome (3477337743).

The spelling of 1061216142 in words is "one billion, sixty-one million, two hundred sixteen thousand, one hundred forty-two".