1145257522 has 8 divisors (see below), whose sum is σ = 1764315756. Its totient is φ = 557152272.

The previous prime is 1145257499. The next prime is 1145257523. The reversal of 1145257522 is 2257525411.

It can be written as a sum of positive squares in 2 ways, for example, as 1137645441 + 7612081 = 33729^2 + 2759^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1145257522² = 2623229583395160968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1145257523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7738153 + ... + 7738300.

Almost surely, 2^1145257522 is an apocalyptic number.

1145257522 is a deficient number, since it is larger than the sum of its proper divisors (619058234).

1145257522 is a wasteful number, since it uses less digits than its factorization.

1145257522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15476492.

The product of its digits is 28000, while the sum is 34.

The square root of 1145257522 is about 33841.6536534490. The cubic root of 1145257522 is about 1046.2473820405.

The spelling of 1145257522 in words is "one billion, one hundred forty-five million, two hundred fifty-seven thousand, five hundred twenty-two".