1143400069 has 16 divisors (see below), whose sum is σ = 1383782400. Its totient is φ = 922897584.

The previous prime is 1143400061. The next prime is 1143400099. The reversal of 1143400069 is 9600043411.

It is not a de Polignac number, because 1143400069 - 2³ = 1143400061 is a prime.

It is a super-2 number, since 2×1143400069² = 2614727435578409522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143400061) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3529 + ... + 47950.

It is an arithmetic number, because the mean of its divisors is an integer number (86486400).

Almost surely, 2^1143400069 is an apocalyptic number.

1143400069 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1143400069 is a deficient number, since it is larger than the sum of its proper divisors (240382331).

1143400069 is a wasteful number, since it uses less digits than its factorization.

1143400069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51672.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 1143400069 is about 33814.1992216288. The cubic root of 1143400069 is about 1045.6814520004.

The spelling of 1143400069 in words is "one billion, one hundred forty-three million, four hundred thousand, sixty-nine".