70681541 has 4 divisors (see below), whose sum is σ = 80778912. Its totient is φ = 60584172.

The previous prime is 70681511. The next prime is 70681547. The reversal of 70681541 is 14518607.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14518607 = 911 ⋅15937.

It is a cyclic number.

It is not a de Polignac number, because 70681541 - 2⁶ = 70681477 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70681498 and 70681507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70681547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5048675 + ... + 5048688.

It is an arithmetic number, because the mean of its divisors is an integer number (20194728).

Almost surely, 2^70681541 is an apocalyptic number.

It is an amenable number.

70681541 is a deficient number, since it is larger than the sum of its proper divisors (10097371).

70681541 is a wasteful number, since it uses less digits than its factorization.

70681541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10097370.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 70681541 is about 8407.2314705853. The cubic root of 70681541 is about 413.4617480956.

The spelling of 70681541 in words is "seventy million, six hundred eighty-one thousand, five hundred forty-one".