78183049 has 8 divisors (see below), whose sum is σ = 93237120. Its totient is φ = 64100256.

The previous prime is 78183041. The next prime is 78183059. The reversal of 78183049 is 94038187.

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 78183049 - 2³ = 78183041 is a prime.

It is a super-2 number, since 2×78183049² = 12225178301872802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78183041) 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 7 ways as a sum of consecutive naturals, for example, 242644 + ... + 242965.

It is an arithmetic number, because the mean of its divisors is an integer number (11654640).

Almost surely, 2^78183049 is an apocalyptic number.

It is an amenable number.

78183049 is a deficient number, since it is larger than the sum of its proper divisors (15054071).

78183049 is a wasteful number, since it uses less digits than its factorization.

78183049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485639.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 78183049 is about 8842.1179024032. The cubic root of 78183049 is about 427.5998403428.

The spelling of 78183049 in words is "seventy-eight million, one hundred eighty-three thousand, forty-nine".