1345120155 has 96 divisors (see below), whose sum is σ = 2652480000. Its totient is φ = 645410304.

The previous prime is 1345120151. The next prime is 1345120171. The reversal of 1345120155 is 5510215431.

1345120155 is a `hidden beast` number, since 1 + 3 + 451 + 201 + 5 + 5 = 666.

1345120155 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1345120155 - 2² = 1345120151 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345120151) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 896596 + ... + 898094.

It is an arithmetic number, because the mean of its divisors is an integer number (27630000).

Almost surely, 2^1345120155 is an apocalyptic number.

1345120155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1345120155 is a deficient number, since it is larger than the sum of its proper divisors (1307359845).

1345120155 is a wasteful number, since it uses less digits than its factorization.

1345120155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1570 (or 1547 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 1345120155 is about 36675.8797440498. The cubic root of 1345120155 is about 1103.8761749710.

Adding to 1345120155 its reverse (5510215431), we get a palindrome (6855335586).

The spelling of 1345120155 in words is "one billion, three hundred forty-five million, one hundred twenty thousand, one hundred fifty-five".