1455910091 has 4 divisors (see below), whose sum is σ = 1457834112. Its totient is φ = 1453986072.

The previous prime is 1455910081. The next prime is 1455910109. The reversal of 1455910091 is 1900195541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1900195541 = 13043 ⋅145687.

It is a cyclic number.

It is not a de Polignac number, because 1455910091 - 2²² = 1451715787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1455910021) 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, 960875 + ... + 962388.

It is an arithmetic number, because the mean of its divisors is an integer number (364458528).

Almost surely, 2^1455910091 is an apocalyptic number.

1455910091 is a deficient number, since it is larger than the sum of its proper divisors (1924021).

1455910091 is an equidigital number, since it uses as much as digits as its factorization.

1455910091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1924020.

The product of its (nonzero) digits is 8100, while the sum is 35.

The square root of 1455910091 is about 38156.3899104724. The cubic root of 1455910091 is about 1133.3868915193.

The spelling of 1455910091 in words is "one billion, four hundred fifty-five million, nine hundred ten thousand, ninety-one".