1107621138 has 32 divisors (see below), whose sum is σ = 2388206016. Its totient is φ = 340440768.

The previous prime is 1107621127. The next prime is 1107621149. The reversal of 1107621138 is 8311267011.

It is an interprime number because it is at equal distance from previous prime (1107621127) and next prime (1107621149).

1107621138 is a modest number, since divided by 21138 gives 11076 as remainder.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70645 + ... + 84887.

It is an arithmetic number, because the mean of its divisors is an integer number (74631438).

Almost surely, 2^1107621138 is an apocalyptic number.

1107621138 is an abundant number, since it is smaller than the sum of its proper divisors (1280584878).

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

1107621138 is a wasteful number, since it uses less digits than its factorization.

1107621138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15258.

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 1107621138 is about 33280.9425647772. The cubic root of 1107621138 is about 1034.6586155018.

Adding to 1107621138 its reverse (8311267011), we get a palindrome (9418888149).

The spelling of 1107621138 in words is "one billion, one hundred seven million, six hundred twenty-one thousand, one hundred thirty-eight".