1425215155 has 32 divisors (see below), whose sum is σ = 2121090048. Its totient is φ = 895190400.

The previous prime is 1425215149. The next prime is 1425215167. The reversal of 1425215155 is 5515125241.

It is not a de Polignac number, because 1425215155 - 2⁷ = 1425215027 is a prime.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 47650 + ... + 71560.

It is an arithmetic number, because the mean of its divisors is an integer number (66284064).

Almost surely, 2^1425215155 is an apocalyptic number.

1425215155 is a deficient number, since it is larger than the sum of its proper divisors (695874893).

1425215155 is a wasteful number, since it uses less digits than its factorization.

1425215155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24067.

The product of its digits is 10000, while the sum is 31.

The square root of 1425215155 is about 37752.0218663849. The cubic root of 1425215155 is about 1125.3651897545.

The spelling of 1425215155 in words is "one billion, four hundred twenty-five million, two hundred fifteen thousand, one hundred fifty-five".