1345117900 has 72 divisors (see below), whose sum is σ = 3443557376. Its totient is φ = 446299200.

The previous prime is 1345117897. The next prime is 1345117909. The reversal of 1345117900 is 97115431.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (1345117909) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9294 + ... + 52693.

Almost surely, 2^1345117900 is an apocalyptic number.

1345117900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1345117900 is an abundant number, since it is smaller than the sum of its proper divisors (2098439476).

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

1345117900 is a wasteful number, since it uses less digits than its factorization.

1345117900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62039 (or 62032 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 31.

The square root of 1345117900 is about 36675.8490017614. The cubic root of 1345117900 is about 1103.8755581135.

The spelling of 1345117900 in words is "one billion, three hundred forty-five million, one hundred seventeen thousand, nine hundred".