1961315 has 4 divisors (see below), whose sum is σ = 2353584. Its totient is φ = 1569048.

The previous prime is 1961257. The next prime is 1961321. The reversal of 1961315 is 5131691.

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 1961315 - 2⁶ = 1961251 is a prime.

It is a Duffinian 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, 196127 + ... + 196136.

It is an arithmetic number, because the mean of its divisors is an integer number (588396).

2^1961315 is an apocalyptic number.

1961315 is a deficient number, since it is larger than the sum of its proper divisors (392269).

1961315 is an equidigital number, since it uses as much as digits as its factorization.

1961315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392268.

The product of its digits is 810, while the sum is 26.

The square root of 1961315 is about 1400.4695641106. The cubic root of 1961315 is about 125.1744763507.

The spelling of 1961315 in words is "one million, nine hundred sixty-one thousand, three hundred fifteen".