1406506131 has 24 divisors (see below), whose sum is σ = 2065177296. Its totient is φ = 922283520.

The previous prime is 1406506091. The next prime is 1406506139. The reversal of 1406506131 is 1316056041.

1406506131 is a `hidden beast` number, since 1 + 4 + 0 + 650 + 6 + 1 + 3 + 1 = 666.

It is not a de Polignac number, because 1406506131 - 2²¹ = 1404408979 is a prime.

It is a super-2 number, since 2×1406506131² = 3956518993081178322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1406506095 and 1406506104.

It is not an unprimeable number, because it can be changed into a prime (1406506139) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 170011 + ... + 178091.

It is an arithmetic number, because the mean of its divisors is an integer number (86049054).

Almost surely, 2^1406506131 is an apocalyptic number.

1406506131 is a deficient number, since it is larger than the sum of its proper divisors (658671165).

1406506131 is a wasteful number, since it uses less digits than its factorization.

1406506131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8403 (or 8400 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 1406506131 is about 37503.4149245105. The cubic root of 1406506131 is about 1120.4192018688.

The spelling of 1406506131 in words is "one billion, four hundred six million, five hundred six thousand, one hundred thirty-one".