1406146531 has 2 divisors, whose sum is σ = 1406146532. Its totient is φ = 1406146530.

The previous prime is 1406146523. The next prime is 1406146541. The reversal of 1406146531 is 1356416041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1406146531 - 2³ = 1406146523 is a prime.

It is a super-2 number, since 2×1406146531² = 3954496133286667922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1406146493 and 1406146502.

It is not a weakly prime, because it can be changed into another prime (1406146541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 703073265 + 703073266.

It is an arithmetic number, because the mean of its divisors is an integer number (703073266).

Almost surely, 2^1406146531 is an apocalyptic number.

1406146531 is a deficient number, since it is larger than the sum of its proper divisors (1).

1406146531 is an equidigital number, since it uses as much as digits as its factorization.

1406146531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 1406146531 is about 37498.6203879556. The cubic root of 1406146531 is about 1120.3237082487.

The spelling of 1406146531 in words is "one billion, four hundred six million, one hundred forty-six thousand, five hundred thirty-one".