1045023251 has 4 divisors (see below), whose sum is σ = 1059338712. Its totient is φ = 1030707792.

The previous prime is 1045023233. The next prime is 1045023277. The reversal of 1045023251 is 1523205401.

1045023251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1045023251 - 2¹⁴ = 1045006867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1045023751) 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, 7157621 + ... + 7157766.

It is an arithmetic number, because the mean of its divisors is an integer number (264834678).

Almost surely, 2^1045023251 is an apocalyptic number.

1045023251 is a deficient number, since it is larger than the sum of its proper divisors (14315461).

1045023251 is an equidigital number, since it uses as much as digits as its factorization.

1045023251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14315460.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1045023251 is about 32326.8193764868. The cubic root of 1045023251 is about 1014.7879877824.

Adding to 1045023251 its reverse (1523205401), we get a palindrome (2568228652).

The spelling of 1045023251 in words is "one billion, forty-five million, twenty-three thousand, two hundred fifty-one".