70091541 has 32 divisors (see below), whose sum is σ = 112331520. Its totient is φ = 42939072.

The previous prime is 70091531. The next prime is 70091543. The reversal of 70091541 is 14519007.

It is not a de Polignac number, because 70091541 - 2¹⁵ = 70058773 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70091543) 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 31 ways as a sum of consecutive naturals, for example, 139096 + ... + 139598.

It is an arithmetic number, because the mean of its divisors is an integer number (3510360).

Almost surely, 2^70091541 is an apocalyptic number.

It is an amenable number.

70091541 is a deficient number, since it is larger than the sum of its proper divisors (42239979).

70091541 is a wasteful number, since it uses less digits than its factorization.

70091541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922 (or 916 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 70091541 is about 8372.0690990937. The cubic root of 70091541 is about 412.3081024775.

The spelling of 70091541 in words is "seventy million, ninety-one thousand, five hundred forty-one".