1390115 has 8 divisors (see below), whose sum is σ = 1725840. Its totient is φ = 1073632.

The previous prime is 1390111. The next prime is 1390117. The reversal of 1390115 is 5110931.

1390115 = T₄₂₃ + T₄₂₄ + ... + T₄₃₇.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1390115 - 2² = 1390111 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1390111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4649 + ... + 4938.

It is an arithmetic number, because the mean of its divisors is an integer number (215730).

2^1390115 is an apocalyptic number.

1390115 is a deficient number, since it is larger than the sum of its proper divisors (335725).

1390115 is an equidigital number, since it uses as much as digits as its factorization.

1390115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9621.

The product of its (nonzero) digits is 135, while the sum is 20.

The square root of 1390115 is about 1179.0313821099. The cubic root of 1390115 is about 111.6049806575.

The spelling of 1390115 in words is "one million, three hundred ninety thousand, one hundred fifteen".