1045623413 has 4 divisors (see below), whose sum is σ = 1046650560. Its totient is φ = 1044596268.

The previous prime is 1045623377. The next prime is 1045623487. The reversal of 1045623413 is 3143265401.

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: 3143265401 = 61 ⋅51528941.

It is a cyclic number.

It is not a de Polignac number, because 1045623413 - 2¹² = 1045619317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045623613) 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, 512045 + ... + 514082.

It is an arithmetic number, because the mean of its divisors is an integer number (261662640).

Almost surely, 2^1045623413 is an apocalyptic number.

It is an amenable number.

1045623413 is a deficient number, since it is larger than the sum of its proper divisors (1027147).

1045623413 is a wasteful number, since it uses less digits than its factorization.

1045623413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027146.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 1045623413 is about 32336.1007698826. The cubic root of 1045623413 is about 1014.9822165181.

Adding to 1045623413 its reverse (3143265401), we get a palindrome (4188888814).

The spelling of 1045623413 in words is "one billion, forty-five million, six hundred twenty-three thousand, four hundred thirteen".