11543402 has 16 divisors (see below), whose sum is σ = 18816840. Its totient is φ = 5279232.

The previous prime is 11543381. The next prime is 11543423. The reversal of 11543402 is 20434511.

It is an interprime number because it is at equal distance from previous prime (11543381) and next prime (11543423).

It can be written as a sum of positive squares in 4 ways, for example, as 2247001 + 9296401 = 1499^2 + 3049^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 974 + ... + 4902.

Almost surely, 2^11543402 is an apocalyptic number.

11543402 is a deficient number, since it is larger than the sum of its proper divisors (7273438).

11543402 is a wasteful number, since it uses less digits than its factorization.

11543402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4057.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 11543402 is about 3397.5582408547. The cubic root of 11543402 is about 226.0014749166.

Adding to 11543402 its reverse (20434511), we get a palindrome (31977913).

The spelling of 11543402 in words is "eleven million, five hundred forty-three thousand, four hundred two".