1517961 has 8 divisors (see below), whose sum is σ = 2033920. Its totient is φ = 1006992.

The previous prime is 1517941. The next prime is 1517983. The reversal of 1517961 is 1697151.

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

It is not a de Polignac number, because 1517961 - 2⁹ = 1517449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1517921) 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, 466 + ... + 1803.

It is an arithmetic number, because the mean of its divisors is an integer number (254240).

2^1517961 is an apocalyptic number.

It is an amenable number.

1517961 is a deficient number, since it is larger than the sum of its proper divisors (515959).

1517961 is a wasteful number, since it uses less digits than its factorization.

1517961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2495.

The product of its digits is 1890, while the sum is 30.

The square root of 1517961 is about 1232.0555993948. The cubic root of 1517961 is about 114.9265062871.

The spelling of 1517961 in words is "one million, five hundred seventeen thousand, nine hundred sixty-one".