1425241687 has 4 divisors (see below), whose sum is σ = 1425543840. Its totient is φ = 1424939536.

The previous prime is 1425241681. The next prime is 1425241693. The reversal of 1425241687 is 7861425241.

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

It is an interprime number because it is at equal distance from previous prime (1425241681) and next prime (1425241693).

It is a cyclic number.

It is not a de Polignac number, because 1425241687 - 2¹¹ = 1425239639 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 (1425241681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143887 + ... + 153472.

It is an arithmetic number, because the mean of its divisors is an integer number (356385960).

Almost surely, 2^1425241687 is an apocalyptic number.

1425241687 is a deficient number, since it is larger than the sum of its proper divisors (302153).

1425241687 is an equidigital number, since it uses as much as digits as its factorization.

1425241687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302152.

The product of its digits is 107520, while the sum is 40.

The square root of 1425241687 is about 37752.3732631473. The cubic root of 1425241687 is about 1125.3721730286.

The spelling of 1425241687 in words is "one billion, four hundred twenty-five million, two hundred forty-one thousand, six hundred eighty-seven".