69144019 has 8 divisors (see below), whose sum is σ = 79093760. Its totient is φ = 59212296.

The previous prime is 69144017. The next prime is 69144071. The reversal of 69144019 is 91044196.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 69144019 - 2¹ = 69144017 is a prime.

It is a super-2 number, since 2×69144019² = 9561790726944722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69144017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5092 + ... + 12814.

It is an arithmetic number, because the mean of its divisors is an integer number (9886720).

Almost surely, 2^69144019 is an apocalyptic number.

69144019 is a deficient number, since it is larger than the sum of its proper divisors (9949741).

69144019 is a wasteful number, since it uses less digits than its factorization.

69144019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9009.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 69144019 is about 8315.2882692063. The cubic root of 69144019 is about 410.4417586326.

The spelling of 69144019 in words is "sixty-nine million, one hundred forty-four thousand, nineteen".