406158131 has 4 divisors (see below), whose sum is σ = 406275072. Its totient is φ = 406041192.

The previous prime is 406158121. The next prime is 406158157. The reversal of 406158131 is 131851604.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-406158131 is a prime.

It is a super-2 number, since 2×406158131² = 329928854754826322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 406158094 and 406158103.

It is not an unprimeable number, because it can be changed into a prime (406158121) 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, 53096 + ... + 60261.

It is an arithmetic number, because the mean of its divisors is an integer number (101568768).

Almost surely, 2^406158131 is an apocalyptic number.

406158131 is a deficient number, since it is larger than the sum of its proper divisors (116941).

406158131 is a wasteful number, since it uses less digits than its factorization.

406158131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116940.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 406158131 is about 20153.3652524833. The cubic root of 406158131 is about 740.5681848825.

The spelling of 406158131 in words is "four hundred six million, one hundred fifty-eight thousand, one hundred thirty-one".