1425220115 has 16 divisors (see below), whose sum is σ = 1963941120. Its totient is φ = 981969120.

The previous prime is 1425220091. The next prime is 1425220117. The reversal of 1425220115 is 5110225241.

It is not a de Polignac number, because 1425220115 - 2¹⁶ = 1425154579 is a prime.

It is a super-2 number, since 2×1425220115² = 4062504752401226450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1425220117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 680879 + ... + 682968.

It is an arithmetic number, because the mean of its divisors is an integer number (122746320).

Almost surely, 2^1425220115 is an apocalyptic number.

1425220115 is a deficient number, since it is larger than the sum of its proper divisors (538721005).

1425220115 is a wasteful number, since it uses less digits than its factorization.

1425220115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1363882.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 1425220115 is about 37752.0875581735. The cubic root of 1425220115 is about 1125.3664952428.

Adding to 1425220115 its reverse (5110225241), we get a palindrome (6535445356).

The spelling of 1425220115 in words is "one billion, four hundred twenty-five million, two hundred twenty thousand, one hundred fifteen".