40207051 has 2 divisors, whose sum is σ = 40207052. Its totient is φ = 40207050.

The previous prime is 40207033. The next prime is 40207061. The reversal of 40207051 is 15070204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40207051 - 2⁹ = 40206539 is a prime.

It is not a weakly prime, because it can be changed into another prime (40207061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20103525 + 20103526.

It is an arithmetic number, because the mean of its divisors is an integer number (20103526).

Almost surely, 2^40207051 is an apocalyptic number.

40207051 is a deficient number, since it is larger than the sum of its proper divisors (1).

40207051 is an equidigital number, since it uses as much as digits as its factorization.

40207051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 40207051 is about 6340.9030114015. The cubic root of 40207051 is about 342.5842611518.

Adding to 40207051 its reverse (15070204), we get a palindrome (55277255).

The spelling of 40207051 in words is "forty million, two hundred seven thousand, fifty-one".