1406694125 has 8 divisors (see below), whose sum is σ = 1755554424. Its totient is φ = 1125355200.

The previous prime is 1406694077. The next prime is 1406694193. The reversal of 1406694125 is 5214966041.

It can be written as a sum of positive squares in 4 ways, for example, as 12866569 + 1393827556 = 3587^2 + 37334^2 .

It is not a de Polignac number, because 1406694125 - 2¹² = 1406690029 is a prime.

It is a super-2 number, since 2×1406694125² = 3957576722619031250, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5626652 + ... + 5626901.

It is an arithmetic number, because the mean of its divisors is an integer number (219444303).

Almost surely, 2^1406694125 is an apocalyptic number.

It is an amenable number.

1406694125 is a deficient number, since it is larger than the sum of its proper divisors (348860299).

1406694125 is an equidigital number, since it uses as much as digits as its factorization.

1406694125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11253568 (or 11253558 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 1406694125 is about 37505.9211991920. The cubic root of 1406694125 is about 1120.4691181588.

The spelling of 1406694125 in words is "one billion, four hundred six million, six hundred ninety-four thousand, one hundred twenty-five".