1406150491 has 2 divisors, whose sum is σ = 1406150492. Its totient is φ = 1406150490.

The previous prime is 1406150453. The next prime is 1406150497. The reversal of 1406150491 is 1940516041.

It is a strong prime.

It is an emirp because it is prime and its reverse (1940516041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1406150491 - 2¹⁹ = 1405626203 is a prime.

It is not a weakly prime, because it can be changed into another prime (1406150497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 703075245 + 703075246.

It is an arithmetic number, because the mean of its divisors is an integer number (703075246).

Almost surely, 2^1406150491 is an apocalyptic number.

1406150491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1406150491 is an equidigital number, since it uses as much as digits as its factorization.

1406150491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 1406150491 is about 37498.6731898610. The cubic root of 1406150491 is about 1120.3247599357.

The spelling of 1406150491 in words is "one billion, four hundred six million, one hundred fifty thousand, four hundred ninety-one".