1345420155 has 8 divisors (see below), whose sum is σ = 2152672272. Its totient is φ = 717557408.

The previous prime is 1345420151. The next prime is 1345420169. The reversal of 1345420155 is 5510245431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1345420155 - 2² = 1345420151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1345420151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44847324 + ... + 44847353.

It is an arithmetic number, because the mean of its divisors is an integer number (269084034).

Almost surely, 2^1345420155 is an apocalyptic number.

1345420155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1345420155 is a deficient number, since it is larger than the sum of its proper divisors (807252117).

1345420155 is an equidigital number, since it uses as much as digits as its factorization.

1345420155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89694685.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 1345420155 is about 36679.9693974791. The cubic root of 1345420155 is about 1103.9582341176.

Adding to 1345420155 its reverse (5510245431), we get a palindrome (6855665586).

The spelling of 1345420155 in words is "one billion, three hundred forty-five million, four hundred twenty thousand, one hundred fifty-five".