1145212404 has 24 divisors (see below), whose sum is σ = 3053899968. Its totient is φ = 327203520.

The previous prime is 1145212379. The next prime is 1145212423. The reversal of 1145212404 is 4042125411.

It is a super-2 number, since 2×1145212404² = 2623022900550918432, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6816657 + ... + 6816824.

It is an arithmetic number, because the mean of its divisors is an integer number (127245832).

Almost surely, 2^1145212404 is an apocalyptic number.

1145212404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1145212404 is an abundant number, since it is smaller than the sum of its proper divisors (1908687564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1145212404 is a wasteful number, since it uses less digits than its factorization.

1145212404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13633495 (or 13633493 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 1145212404 is about 33840.9870423426. The cubic root of 1145212404 is about 1046.2336427116.

Adding to 1145212404 its reverse (4042125411), we get a palindrome (5187337815).

The spelling of 1145212404 in words is "one billion, one hundred forty-five million, two hundred twelve thousand, four hundred four".