1051243523 has 6 divisors (see below), whose sum is σ = 1155499212. Its totient is φ = 955675820.

The previous prime is 1051243477. The next prime is 1051243549. The reversal of 1051243523 is 3253421501.

It is a happy number.

It is not a de Polignac number, because 1051243523 - 2¹⁴ = 1051227139 is a prime.

It is a super-2 number, since 2×1051243523² = 2210225889298903058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1051243492 and 1051243501.

It is not an unprimeable number, because it can be changed into a prime (1051243553) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4343861 + ... + 4344102.

It is an arithmetic number, because the mean of its divisors is an integer number (192583202).

Almost surely, 2^1051243523 is an apocalyptic number.

1051243523 is a deficient number, since it is larger than the sum of its proper divisors (104255689).

1051243523 is an equidigital number, since it uses as much as digits as its factorization.

1051243523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8687985 (or 8687974 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 1051243523 is about 32422.8857907497. The cubic root of 1051243523 is about 1016.7974405041.

The spelling of 1051243523 in words is "one billion, fifty-one million, two hundred forty-three thousand, five hundred twenty-three".