406148109 has 8 divisors (see below), whose sum is σ = 542788992. Its totient is φ = 270136320.

The previous prime is 406148089. The next prime is 406148147. The reversal of 406148109 is 901841604.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 406148109 - 2⁷ = 406147981 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 406148109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406148179) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155764 + ... + 158349.

It is an arithmetic number, because the mean of its divisors is an integer number (67848624).

Almost surely, 2^406148109 is an apocalyptic number.

It is an amenable number.

406148109 is a deficient number, since it is larger than the sum of its proper divisors (136640883).

406148109 is a wasteful number, since it uses less digits than its factorization.

406148109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314547.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 406148109 is about 20153.1166076118. The cubic root of 406148109 is about 740.5620936298.

The spelling of 406148109 in words is "four hundred six million, one hundred forty-eight thousand, one hundred nine".