1425373943 has 4 divisors (see below), whose sum is σ = 1628998800. Its totient is φ = 1221749088.

The previous prime is 1425373907. The next prime is 1425373967. The reversal of 1425373943 is 3493735241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3493735241 = 29 ⋅120473629.

It is not a de Polignac number, because 1425373943 - 2¹⁰ = 1425372919 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1425373943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1425378943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101812418 + ... + 101812431.

It is an arithmetic number, because the mean of its divisors is an integer number (407249700).

Almost surely, 2^1425373943 is an apocalyptic number.

1425373943 is a deficient number, since it is larger than the sum of its proper divisors (203624857).

1425373943 is an equidigital number, since it uses as much as digits as its factorization.

1425373943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203624856.

The product of its digits is 272160, while the sum is 41.

The square root of 1425373943 is about 37754.1248474918. The cubic root of 1425373943 is about 1125.4069817725.

The spelling of 1425373943 in words is "one billion, four hundred twenty-five million, three hundred seventy-three thousand, nine hundred forty-three".