1045452101 has 4 divisors (see below), whose sum is σ = 1046352192. Its totient is φ = 1044552012.

The previous prime is 1045452047. The next prime is 1045452103. The reversal of 1045452101 is 1012545401.

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: 1012545401 = 7 ⋅144649343.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1045452101 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045452103) 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, 448301 + ... + 450626.

It is an arithmetic number, because the mean of its divisors is an integer number (261588048).

Almost surely, 2^1045452101 is an apocalyptic number.

It is an amenable number.

1045452101 is a deficient number, since it is larger than the sum of its proper divisors (900091).

1045452101 is an equidigital number, since it uses as much as digits as its factorization.

1045452101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900090.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 1045452101 is about 32333.4517334602. The cubic root of 1045452101 is about 1014.9267828798.

Adding to 1045452101 its reverse (1012545401), we get a palindrome (2057997502).

The spelling of 1045452101 in words is "one billion, forty-five million, four hundred fifty-two thousand, one hundred one".