69143049 has 12 divisors (see below), whose sum is σ = 99950916. Its totient is φ = 46059552.

The previous prime is 69143017. The next prime is 69143059. The reversal of 69143049 is 94034196.

It can be written as a sum of positive squares in 2 ways, for example, as 36000000 + 33143049 = 6000^2 + 5757^2 .

It is not a de Polignac number, because 69143049 - 2⁵ = 69143017 is a prime.

It is a super-2 number, since 2×69143049² = 9561522450032802, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (69143059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14847 + ... + 18939.

It is an arithmetic number, because the mean of its divisors is an integer number (8329243).

Almost surely, 2^69143049 is an apocalyptic number.

It is an amenable number.

69143049 is a deficient number, since it is larger than the sum of its proper divisors (30807867).

69143049 is a wasteful number, since it uses less digits than its factorization.

69143049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5976 (or 5973 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 69143049 is about 8315.2299427015. The cubic root of 69143049 is about 410.4398393036.

The spelling of 69143049 in words is "sixty-nine million, one hundred forty-three thousand, forty-nine".