1401111242 has 8 divisors (see below), whose sum is σ = 2102246436. Its totient is φ = 700362432.

The previous prime is 1401111221. The next prime is 1401111259. The reversal of 1401111242 is 2421111041.

It can be written as a sum of positive squares in 2 ways, for example, as 1320668281 + 80442961 = 36341^2 + 8969^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1401111242² = 3926225424917565128, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1401111242.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87353 + ... + 102140.

Almost surely, 2^1401111242 is an apocalyptic number.

1401111242 is a deficient number, since it is larger than the sum of its proper divisors (701135194).

1401111242 is a wasteful number, since it uses less digits than its factorization.

1401111242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193192.

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 1401111242 is about 37431.4205180621. The cubic root of 1401111242 is about 1118.9848481224.

Adding to 1401111242 its reverse (2421111041), we get a palindrome (3822222283).

The spelling of 1401111242 in words is "one billion, four hundred one million, one hundred eleven thousand, two hundred forty-two".