9105421970 has 16 divisors (see below), whose sum is σ = 16390914840. Its totient is φ = 3641912064.

The previous prime is 9105421967. The next prime is 9105421979. The reversal of 9105421970 is 791245019.

It can be written as a sum of positive squares in 4 ways, for example, as 9104403889 + 1018081 = 95417^2 + 1009^2 .

It is not an unprimeable number, because it can be changed into a prime (9105421979) 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, 190184 + ... + 233196.

Almost surely, 2^9105421970 is an apocalyptic number.

9105421970 is a deficient number, since it is larger than the sum of its proper divisors (7285492870).

9105421970 is a wasteful number, since it uses less digits than its factorization.

9105421970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64189.

The product of its (nonzero) digits is 22680, while the sum is 38.

The square root of 9105421970 is about 95422.3347545007. The cubic root of 9105421970 is about 2088.1740399023.

Adding to 9105421970 its reverse (791245019), we get a palindrome (9896666989).

The spelling of 9105421970 in words is "nine billion, one hundred five million, four hundred twenty-one thousand, nine hundred seventy".