1425629215 has 4 divisors (see below), whose sum is σ = 1710755064. Its totient is φ = 1140503368.

The previous prime is 1425629207. The next prime is 1425629269. The reversal of 1425629215 is 5129265241.

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 1425629215 - 2³ = 1425629207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142562917 + ... + 142562926.

It is an arithmetic number, because the mean of its divisors is an integer number (427688766).

Almost surely, 2^1425629215 is an apocalyptic number.

1425629215 is a deficient number, since it is larger than the sum of its proper divisors (285125849).

1425629215 is an equidigital number, since it uses as much as digits as its factorization.

1425629215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285125848.

The product of its digits is 43200, while the sum is 37.

The square root of 1425629215 is about 37757.5054128315. The cubic root of 1425629215 is about 1125.4741612763.

The spelling of 1425629215 in words is "one billion, four hundred twenty-five million, six hundred twenty-nine thousand, two hundred fifteen".