915401 has 4 divisors (see below), whose sum is σ = 963600. Its totient is φ = 867204.

The previous prime is 915391. The next prime is 915437. The reversal of 915401 is 104519.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 104519 = 19 ⋅5501.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-915401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (915451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24071 + ... + 24108.

It is an arithmetic number, because the mean of its divisors is an integer number (240900).

2⁹¹⁵⁴⁰¹ is an apocalyptic number.

It is an amenable number.

915401 is a deficient number, since it is larger than the sum of its proper divisors (48199).

915401 is a wasteful number, since it uses less digits than its factorization.

915401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48198.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 915401 is about 956.7659065832. The cubic root of 915401 is about 97.0965489243.

The spelling of 915401 in words is "nine hundred fifteen thousand, four hundred one".