469181939 has 2 divisors, whose sum is σ = 469181940. Its totient is φ = 469181938.

The previous prime is 469181897. The next prime is 469181957. The reversal of 469181939 is 939181964.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 469181939 - 2¹² = 469177843 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (469181969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 234590969 + 234590970.

It is an arithmetic number, because the mean of its divisors is an integer number (234590970).

Almost surely, 2^469181939 is an apocalyptic number.

469181939 is a deficient number, since it is larger than the sum of its proper divisors (1).

469181939 is an equidigital number, since it uses as much as digits as its factorization.

469181939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 419904, while the sum is 50.

The square root of 469181939 is about 21660.6080016236. The cubic root of 469181939 is about 777.0466549981.

The spelling of 469181939 in words is "four hundred sixty-nine million, one hundred eighty-one thousand, nine hundred thirty-nine".