42051097 has 16 divisors (see below), whose sum is σ = 47775744. Its totient is φ = 36666000.

The previous prime is 42051091. The next prime is 42051151. The reversal of 42051097 is 79015024.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42051097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42051091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42822 + ... + 43792.

It is an arithmetic number, because the mean of its divisors is an integer number (2985984).

Almost surely, 2^42051097 is an apocalyptic number.

It is an amenable number.

42051097 is a deficient number, since it is larger than the sum of its proper divisors (5724647).

42051097 is a wasteful number, since it uses less digits than its factorization.

42051097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 42051097 is about 6484.6817192519. The cubic root of 42051097 is about 347.7435712774.

The spelling of 42051097 in words is "forty-two million, fifty-one thousand, ninety-seven".