78137941 has 8 divisors (see below), whose sum is σ = 89393024. Its totient is φ = 66906000.

The previous prime is 78137929. The next prime is 78137957. The reversal of 78137941 is 14973187.

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

It is not a de Polignac number, because 78137941 - 2⁹ = 78137429 is a prime.

It is a super-2 number, since 2×78137941² = 12211075647438962, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78137894 and 78137903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78137041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2191 + ... + 12691.

It is an arithmetic number, because the mean of its divisors is an integer number (11174128).

Almost surely, 2^78137941 is an apocalyptic number.

It is an amenable number.

78137941 is a deficient number, since it is larger than the sum of its proper divisors (11255083).

78137941 is a wasteful number, since it uses less digits than its factorization.

78137941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11571.

The product of its digits is 42336, while the sum is 40.

The square root of 78137941 is about 8839.5667880276. The cubic root of 78137941 is about 427.5175894180.

The spelling of 78137941 in words is "seventy-eight million, one hundred thirty-seven thousand, nine hundred forty-one".