78461541 has 28 divisors (see below), whose sum is σ = 120422368. Its totient is φ = 51070824.

The previous prime is 78461531. The next prime is 78461557. The reversal of 78461541 is 14516487.

It is a happy number.

78461541 is a `hidden beast` number, since 78 + 46 + 1 + 541 = 666.

It is not a de Polignac number, because 78461541 - 2⁹ = 78461029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78461496 and 78461505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78461531) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 30096 + ... + 32598.

Almost surely, 2^78461541 is an apocalyptic number.

It is an amenable number.

78461541 is a deficient number, since it is larger than the sum of its proper divisors (41960827).

78461541 is an equidigital number, since it uses as much as digits as its factorization.

78461541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2564 (or 2549 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 78461541 is about 8857.8519405102. The cubic root of 78461541 is about 428.1069495009.

The spelling of 78461541 in words is "seventy-eight million, four hundred sixty-one thousand, five hundred forty-one".