423142402157 has 4 divisors (see below), whose sum is σ = 427896811260. Its totient is φ = 418387993056.

The previous prime is 423142402121. The next prime is 423142402159. The reversal of 423142402157 is 751204241324.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 249181670761 + 173960731396 = 499181^2 + 417086^2 .

It is a cyclic number.

It is not a de Polignac number, because 423142402157 - 2¹² = 423142398061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423142402159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2377204418 + ... + 2377204595.

It is an arithmetic number, because the mean of its divisors is an integer number (106974202815).

Almost surely, 2^423142402157 is an apocalyptic number.

It is an amenable number.

423142402157 is a deficient number, since it is larger than the sum of its proper divisors (4754409103).

423142402157 is an equidigital number, since it uses as much as digits as its factorization.

423142402157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4754409102.

The product of its (nonzero) digits is 53760, while the sum is 35.

The spelling of 423142402157 in words is "four hundred twenty-three billion, one hundred forty-two million, four hundred two thousand, one hundred fifty-seven".