440131157 has 2 divisors, whose sum is σ = 440131158. Its totient is φ = 440131156.

The previous prime is 440131147. The next prime is 440131183. The reversal of 440131157 is 751131044.

It is an a-pointer prime, because the next prime (440131183) can be obtained adding 440131157 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 379509361 + 60621796 = 19481^2 + 7786^2 .

It is a cyclic number.

It is not a de Polignac number, because 440131157 - 2⁶ = 440131093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (440131127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220065578 + 220065579.

It is an arithmetic number, because the mean of its divisors is an integer number (220065579).

Almost surely, 2^440131157 is an apocalyptic number.

It is an amenable number.

440131157 is a deficient number, since it is larger than the sum of its proper divisors (1).

440131157 is an equidigital number, since it uses as much as digits as its factorization.

440131157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 440131157 is about 20979.3030627807. The cubic root of 440131157 is about 760.6660579529. Note that the first 3 decimals are identical.

The spelling of 440131157 in words is "four hundred forty million, one hundred thirty-one thousand, one hundred fifty-seven".