470138081 has 4 divisors (see below), whose sum is σ = 537300672. Its totient is φ = 402975492.

The previous prime is 470138063. The next prime is 470138087. The reversal of 470138081 is 180831074.

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 470138081 - 2⁶ = 470138017 is a prime.

It is a super-2 number, since 2×470138081² = 442059630412725122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (470138087) 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, 33581285 + ... + 33581298.

It is an arithmetic number, because the mean of its divisors is an integer number (134325168).

Almost surely, 2^470138081 is an apocalyptic number.

It is an amenable number.

470138081 is a deficient number, since it is larger than the sum of its proper divisors (67162591).

470138081 is an equidigital number, since it uses as much as digits as its factorization.

470138081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67162590.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 470138081 is about 21682.6677556061. The cubic root of 470138081 is about 777.5741424937.

The spelling of 470138081 in words is "four hundred seventy million, one hundred thirty-eight thousand, eighty-one".