538429157 has 4 divisors (see below), whose sum is σ = 615347616. Its totient is φ = 461510700.

The previous prime is 538429123. The next prime is 538429159. The reversal of 538429157 is 751924835.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 751924835 = 5 ⋅150384967.

It is not a de Polignac number, because 538429157 - 2⁸ = 538428901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538429159) 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, 38459219 + ... + 38459232.

It is an arithmetic number, because the mean of its divisors is an integer number (153836904).

Almost surely, 2^538429157 is an apocalyptic number.

It is an amenable number.

538429157 is a deficient number, since it is larger than the sum of its proper divisors (76918459).

538429157 is an equidigital number, since it uses as much as digits as its factorization.

538429157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76918458.

The product of its digits is 302400, while the sum is 44.

The square root of 538429157 is about 23204.0763013743. The cubic root of 538429157 is about 813.5349025438.

The spelling of 538429157 in words is "five hundred thirty-eight million, four hundred twenty-nine thousand, one hundred fifty-seven".