70420541 has 4 divisors (see below), whose sum is σ = 72058272. Its totient is φ = 68782812.

The previous prime is 70420513. The next prime is 70420543. The reversal of 70420541 is 14502407.

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: 14502407 = 29 ⋅500083.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70420541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70420543) 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 3 ways as a sum of consecutive naturals, for example, 818801 + ... + 818886.

It is an arithmetic number, because the mean of its divisors is an integer number (18014568).

Almost surely, 2^70420541 is an apocalyptic number.

It is an amenable number.

70420541 is a deficient number, since it is larger than the sum of its proper divisors (1637731).

70420541 is a wasteful number, since it uses less digits than its factorization.

70420541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1637730.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 70420541 is about 8391.6947632764. The cubic root of 70420541 is about 412.9522014930.

Adding to 70420541 its reverse (14502407), we get a palindrome (84922948).

The spelling of 70420541 in words is "seventy million, four hundred twenty thousand, five hundred forty-one".