1351340145 has 64 divisors (see below), whose sum is σ = 2470195200. Its totient is φ = 700539840.

The previous prime is 1351340141. The next prime is 1351340161. The reversal of 1351340145 is 5410431531.

It is a happy number.

1351340145 is a `hidden beast` number, since 1 + 3 + 513 + 4 + 0 + 145 = 666.

It is not a de Polignac number, because 1351340145 - 2² = 1351340141 is a prime.

It is a super-2 number, since 2×1351340145² = 3652240374977242050, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (1351340141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1572726 + ... + 1573584.

It is an arithmetic number, because the mean of its divisors is an integer number (38596800).

Almost surely, 2^1351340145 is an apocalyptic number.

1351340145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1351340145 is a deficient number, since it is larger than the sum of its proper divisors (1118855055).

1351340145 is a wasteful number, since it uses less digits than its factorization.

1351340145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1187 (or 1181 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 1351340145 is about 36760.5786815170. The cubic root of 1351340145 is about 1105.5750424510.

Adding to 1351340145 its reverse (5410431531), we get a palindrome (6761771676).

The spelling of 1351340145 in words is "one billion, three hundred fifty-one million, three hundred forty thousand, one hundred forty-five".