11143902 has 32 divisors (see below), whose sum is σ = 27788544. Its totient is φ = 2894400.

The previous prime is 11143901. The next prime is 11143903. The reversal of 11143902 is 20934111.

11143902 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11143901) and next prime (11143903).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11143901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11599 + ... + 12522.

It is an arithmetic number, because the mean of its divisors is an integer number (868392).

Almost surely, 2^11143902 is an apocalyptic number.

11143902 is an abundant number, since it is smaller than the sum of its proper divisors (16644642).

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

11143902 is a wasteful number, since it uses less digits than its factorization.

11143902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24144.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 11143902 is about 3338.2483430686. The cubic root of 11143902 is about 223.3636141214.

The spelling of 11143902 in words is "eleven million, one hundred forty-three thousand, nine hundred two".