1345401545 has 4 divisors (see below), whose sum is σ = 1614481860. Its totient is φ = 1076321232.

The previous prime is 1345401523. The next prime is 1345401557. The reversal of 1345401545 is 5451045431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 703893961 + 641507584 = 26531^2 + 25328^2 .

It is a cyclic number.

It is not a de Polignac number, because 1345401545 - 2⁶ = 1345401481 is a prime.

It is a super-3 number, since 3×1345401545³ (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134540150 + ... + 134540159.

It is an arithmetic number, because the mean of its divisors is an integer number (403620465).

Almost surely, 2^1345401545 is an apocalyptic number.

It is an amenable number.

1345401545 is a deficient number, since it is larger than the sum of its proper divisors (269080315).

1345401545 is an equidigital number, since it uses as much as digits as its factorization.

1345401545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269080314.

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 1345401545 is about 36679.7157159103. The cubic root of 1345401545 is about 1103.9531440701.

Adding to 1345401545 its reverse (5451045431), we get a palindrome (6796446976).

The spelling of 1345401545 in words is "one billion, three hundred forty-five million, four hundred one thousand, five hundred forty-five".