73142769 has 8 divisors (see below), whose sum is σ = 111455680. Its totient is φ = 41795856.

The previous prime is 73142767. The next prime is 73142807. The reversal of 73142769 is 96724137.

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

It is not a de Polignac number, because 73142769 - 2¹ = 73142767 is a prime.

It is a super-2 number, since 2×73142769² = 10699729313974722, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (73142767) 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, 1741474 + ... + 1741515.

It is an arithmetic number, because the mean of its divisors is an integer number (13931960).

Almost surely, 2^73142769 is an apocalyptic number.

It is an amenable number.

73142769 is a deficient number, since it is larger than the sum of its proper divisors (38312911).

73142769 is a wasteful number, since it uses less digits than its factorization.

73142769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3482999.

The product of its digits is 63504, while the sum is 39.

The square root of 73142769 is about 8552.3545880652. The cubic root of 73142769 is about 418.2061988693.

The spelling of 73142769 in words is "seventy-three million, one hundred forty-two thousand, seven hundred sixty-nine".