111630642 has 16 divisors (see below), whose sum is σ = 224385600. Its totient is φ = 37022832.

The previous prime is 111630637. The next prime is 111630647. The reversal of 111630642 is 246036111.

It is an interprime number because it is at equal distance from previous prime (111630637) and next prime (111630647).

It is a super-2 number, since 2×111630642² = 24922800466664328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111630647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45553 + ... + 47940.

It is an arithmetic number, because the mean of its divisors is an integer number (14024100).

Almost surely, 2^111630642 is an apocalyptic number.

111630642 is an abundant number, since it is smaller than the sum of its proper divisors (112754958).

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

111630642 is a wasteful number, since it uses less digits than its factorization.

111630642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93697.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 111630642 is about 10565.5403080013. The cubic root of 111630642 is about 481.4979851517.

Adding to 111630642 its reverse (246036111), we get a palindrome (357666753).

The spelling of 111630642 in words is "one hundred eleven million, six hundred thirty thousand, six hundred forty-two".