1345512402 has 48 divisors (see below), whose sum is σ = 3146591448. Its totient is φ = 413072640.

The previous prime is 1345512361. The next prime is 1345512403. The reversal of 1345512402 is 2042155431.

It can be written as a sum of positive squares in 4 ways, for example, as 944271441 + 401240961 = 30729^2 + 20031^2 .

It is not an unprimeable number, because it can be changed into a prime (1345512403) 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, 101638 + ... + 114110.

Almost surely, 2^1345512402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1345512402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1573295724).

1345512402 is an abundant number, since it is smaller than the sum of its proper divisors (1801079046).

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

1345512402 is a wasteful number, since it uses less digits than its factorization.

1345512402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12955 (or 12952 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1345512402 is about 36681.2268333544. The cubic root of 1345512402 is about 1103.9834640324.

Adding to 1345512402 its reverse (2042155431), we get a palindrome (3387667833).

The spelling of 1345512402 in words is "one billion, three hundred forty-five million, five hundred twelve thousand, four hundred two".