1406251 has 12 divisors (see below), whose sum is σ = 1785240. Its totient is φ = 1095360.

The previous prime is 1406231. The next prime is 1406267. The reversal of 1406251 is 1526041.

It is not a de Polignac number, because 1406251 - 2¹⁵ = 1373483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1406221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 766 + ... + 1843.

It is an arithmetic number, because the mean of its divisors is an integer number (148770).

2^1406251 is an apocalyptic number.

1406251 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1406251 is a deficient number, since it is larger than the sum of its proper divisors (378989).

1406251 is a wasteful number, since it uses less digits than its factorization.

1406251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2634 (or 2627 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1406251 is about 1185.8545442001. The cubic root of 1406251 is about 112.0351452204.

The spelling of 1406251 in words is "one million, four hundred six thousand, two hundred fifty-one".