70041521 has 8 divisors (see below), whose sum is σ = 76469664. Its totient is φ = 63623520.

The previous prime is 70041497. The next prime is 70041523. The reversal of 70041521 is 12514007.

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 70041521 - 2⁶ = 70041457 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70041493 and 70041502.

It is not an unprimeable number, because it can be changed into a prime (70041523) 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, 24461 + ... + 27173.

It is an arithmetic number, because the mean of its divisors is an integer number (9558708).

Almost surely, 2^70041521 is an apocalyptic number.

It is an amenable number.

70041521 is a deficient number, since it is larger than the sum of its proper divisors (6428143).

70041521 is a wasteful number, since it uses less digits than its factorization.

70041521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5071.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 70041521 is about 8369.0812518460. The cubic root of 70041521 is about 412.2099995353.

Adding to 70041521 its reverse (12514007), we get a palindrome (82555528).

The spelling of 70041521 in words is "seventy million, forty-one thousand, five hundred twenty-one".