1001401142 has 24 divisors (see below), whose sum is σ = 1768409496. Its totient is φ = 423997728.

The previous prime is 1001401081. The next prime is 1001401169. The reversal of 1001401142 is 2411041001.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53423 + ... + 69690.

It is an arithmetic number, because the mean of its divisors is an integer number (73683729).

Almost surely, 2^1001401142 is an apocalyptic number.

1001401142 is a deficient number, since it is larger than the sum of its proper divisors (767008354).

1001401142 is a wasteful number, since it uses less digits than its factorization.

1001401142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123212 (or 123205 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 1001401142 is about 31644.9228471172. The cubic root of 1001401142 is about 1000.4668293698.

Adding to 1001401142 its reverse (2411041001), we get a palindrome (3412442143).

The spelling of 1001401142 in words is "one billion, one million, four hundred one thousand, one hundred forty-two".