471618157 has 4 divisors (see below), whose sum is σ = 472849920. Its totient is φ = 470386396.

The previous prime is 471618137. The next prime is 471618167. The reversal of 471618157 is 751816174.

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.

It is a cyclic number.

It is not a de Polignac number, because 471618157 - 2¹¹ = 471616109 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (471618137) 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, 615307 + ... + 616072.

It is an arithmetic number, because the mean of its divisors is an integer number (118212480).

Almost surely, 2^471618157 is an apocalyptic number.

It is an amenable number.

471618157 is a deficient number, since it is larger than the sum of its proper divisors (1231763).

471618157 is a wasteful number, since it uses less digits than its factorization.

471618157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231762.

The product of its digits is 47040, while the sum is 40.

The square root of 471618157 is about 21716.7713300113. The cubic root of 471618157 is about 778.3892670068.

The spelling of 471618157 in words is "four hundred seventy-one million, six hundred eighteen thousand, one hundred fifty-seven".