40225151 has 2 divisors, whose sum is σ = 40225152. Its totient is φ = 40225150.

The previous prime is 40225139. The next prime is 40225187. The reversal of 40225151 is 15152204.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40225151 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40255151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20112575 + 20112576.

It is an arithmetic number, because the mean of its divisors is an integer number (20112576).

Almost surely, 2^40225151 is an apocalyptic number.

40225151 is a deficient number, since it is larger than the sum of its proper divisors (1).

40225151 is an equidigital number, since it uses as much as digits as its factorization.

40225151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 40225151 is about 6342.3300923241. The cubic root of 40225151 is about 342.6356604689.

Adding to 40225151 its reverse (15152204), we get a palindrome (55377355).

The spelling of 40225151 in words is "forty million, two hundred twenty-five thousand, one hundred fifty-one".