1053545399 has 4 divisors (see below), whose sum is σ = 1053850680. Its totient is φ = 1053240120.

The previous prime is 1053545387. The next prime is 1053545413. The reversal of 1053545399 is 9935453501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9935453501 = 89 ⋅111634309.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1053545399 is a prime.

It is a super-2 number, since 2×1053545399² = 2219915815508138402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1053541399) 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, 147404 + ... + 154385.

It is an arithmetic number, because the mean of its divisors is an integer number (263462670).

Almost surely, 2^1053545399 is an apocalyptic number.

1053545399 is a deficient number, since it is larger than the sum of its proper divisors (305281).

1053545399 is an equidigital number, since it uses as much as digits as its factorization.

1053545399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305280.

The product of its (nonzero) digits is 364500, while the sum is 44.

The square root of 1053545399 is about 32458.3640838536. The cubic root of 1053545399 is about 1017.5390496275.

The spelling of 1053545399 in words is "one billion, fifty-three million, five hundred forty-five thousand, three hundred ninety-nine".