1425737887 has 4 divisors (see below), whose sum is σ = 1629414736. Its totient is φ = 1222061040.

The previous prime is 1425737879. The next prime is 1425737897. The reversal of 1425737887 is 7887375241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1425737887 - 2³ = 1425737879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1425737867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101838414 + ... + 101838427.

It is an arithmetic number, because the mean of its divisors is an integer number (407353684).

Almost surely, 2^1425737887 is an apocalyptic number.

1425737887 is a deficient number, since it is larger than the sum of its proper divisors (203676849).

1425737887 is an equidigital number, since it uses as much as digits as its factorization.

1425737887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203676848.

The product of its digits is 2634240, while the sum is 52.

The square root of 1425737887 is about 37758.9444635308. The cubic root of 1425737887 is about 1125.5027578705.

The spelling of 1425737887 in words is "one billion, four hundred twenty-five million, seven hundred thirty-seven thousand, eight hundred eighty-seven".