423190143 has 16 divisors (see below), whose sum is σ = 627596640. Its totient is φ = 281835072.

The previous prime is 423190139. The next prime is 423190147. The reversal of 423190143 is 341091324.

It is an interprime number because it is at equal distance from previous prime (423190139) and next prime (423190147).

It is not a de Polignac number, because 423190143 - 2² = 423190139 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423190147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20305 + ... + 35477.

It is an arithmetic number, because the mean of its divisors is an integer number (39224790).

Almost surely, 2^423190143 is an apocalyptic number.

423190143 is a deficient number, since it is larger than the sum of its proper divisors (204406497).

423190143 is a wasteful number, since it uses less digits than its factorization.

423190143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16215 (or 16209 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 423190143 is about 20571.5858163633. The cubic root of 423190143 is about 750.7785355635.

The spelling of 423190143 in words is "four hundred twenty-three million, one hundred ninety thousand, one hundred forty-three".