1145651100 has 72 divisors (see below), whose sum is σ = 3616101888. Its totient is φ = 277732800.

The previous prime is 1145651083. The next prime is 1145651141. The reversal of 1145651100 is 11565411.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 170284 + ... + 176883.

Almost surely, 2^1145651100 is an apocalyptic number.

1145651100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1145651100 is an abundant number, since it is smaller than the sum of its proper divisors (2470450788).

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

1145651100 is a wasteful number, since it uses less digits than its factorization.

1145651100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347195 (or 347188 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 24.

The square root of 1145651100 is about 33847.4681475587. The cubic root of 1145651100 is about 1046.3672190736.

The spelling of 1145651100 in words is "one billion, one hundred forty-five million, six hundred fifty-one thousand, one hundred".