42951097 has 18 divisors (see below), whose sum is σ = 52261818. Its totient is φ = 35193312.

The previous prime is 42951079. The next prime is 42951157. The reversal of 42951097 is 79015924.

It can be written as a sum of positive squares in only one way, i.e., 33593616 + 9357481 = 5796^2 + 3059^2 .

It is not a de Polignac number, because 42951097 - 2¹⁹ = 42426809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42951017) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 25093 + ... + 26749.

Almost surely, 2^42951097 is an apocalyptic number.

It is an amenable number.

42951097 is a deficient number, since it is larger than the sum of its proper divisors (9310721).

42951097 is a wasteful number, since it uses less digits than its factorization.

42951097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1717 (or 1687 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 42951097 is about 6553.7086447293. The cubic root of 42951097 is about 350.2069442827.

The spelling of 42951097 in words is "forty-two million, nine hundred fifty-one thousand, ninety-seven".