1345763140 has 12 divisors (see below), whose sum is σ = 2826102636. Its totient is φ = 538305248.

The previous prime is 1345763137. The next prime is 1345763147. The reversal of 1345763140 is 413675431.

It can be written as a sum of positive squares in 2 ways, for example, as 607228164 + 738534976 = 24642^2 + 27176^2 .

It is a super-2 number, since 2×1345763140² = 3622156857965319200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1345763096 and 1345763105.

It is not an unprimeable number, because it can be changed into a prime (1345763147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33644059 + ... + 33644098.

It is an arithmetic number, because the mean of its divisors is an integer number (235508553).

Almost surely, 2^1345763140 is an apocalyptic number.

1345763140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1345763140 is an abundant number, since it is smaller than the sum of its proper divisors (1480339496).

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

1345763140 is a wasteful number, since it uses less digits than its factorization.

1345763140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67288166 (or 67288164 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 1345763140 is about 36684.6444714952. The cubic root of 1345763140 is about 1104.0520360284.

The spelling of 1345763140 in words is "one billion, three hundred forty-five million, seven hundred sixty-three thousand, one hundred forty".