915091401 has 16 divisors (see below), whose sum is σ = 1396946304. Its totient is φ = 521963904.

The previous prime is 915091369. The next prime is 915091403. The reversal of 915091401 is 104190519.

It is not a de Polignac number, because 915091401 - 2⁵ = 915091369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (915091403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27420 + ... + 50813.

It is an arithmetic number, because the mean of its divisors is an integer number (87309144).

Almost surely, 2^915091401 is an apocalyptic number.

It is an amenable number.

915091401 is a deficient number, since it is larger than the sum of its proper divisors (481854903).

915091401 is a wasteful number, since it uses less digits than its factorization.

915091401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78800.

The product of its (nonzero) digits is 1620, while the sum is 30.

The square root of 915091401 is about 30250.4776987075. The cubic root of 915091401 is about 970.8560130534.

The spelling of 915091401 in words is "nine hundred fifteen million, ninety-one thousand, four hundred one".