1245115 has 16 divisors (see below), whose sum is σ = 1601280. Its totient is φ = 927360.

The previous prime is 1245113. The next prime is 1245121. The reversal of 1245115 is 5115421.

It is not a de Polignac number, because 1245115 - 2¹ = 1245113 is a prime.

It is a super-2 number, since 2×1245115² = 3100622726450, which contains 22 as substring.

1245115 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1245092 and 1245101.

It is not an unprimeable number, because it can be changed into a prime (1245113) 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, 4357 + ... + 4633.

It is an arithmetic number, because the mean of its divisors is an integer number (100080).

2^1245115 is an apocalyptic number.

1245115 is a deficient number, since it is larger than the sum of its proper divisors (356165).

1245115 is a wasteful number, since it uses less digits than its factorization.

1245115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342.

The product of its digits is 200, while the sum is 19.

The square root of 1245115 is about 1115.8472117633. The cubic root of 1245115 is about 107.5812257935.

The spelling of 1245115 in words is "one million, two hundred forty-five thousand, one hundred fifteen".