1345121051 has 8 divisors (see below), whose sum is σ = 1382429664. Its totient is φ = 1307862720.

The previous prime is 1345120963. The next prime is 1345121087. The reversal of 1345121051 is 1501215431.

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 1345121051 - 2²² = 1340926747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1345121251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45311 + ... + 68871.

It is an arithmetic number, because the mean of its divisors is an integer number (172803708).

Almost surely, 2^1345121051 is an apocalyptic number.

1345121051 is a deficient number, since it is larger than the sum of its proper divisors (37308613).

1345121051 is a wasteful number, since it uses less digits than its factorization.

1345121051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25141.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 1345121051 is about 36675.8919591603. The cubic root of 1345121051 is about 1103.8764200724.

Adding to 1345121051 its reverse (1501215431), we get a palindrome (2846336482).

The spelling of 1345121051 in words is "one billion, three hundred forty-five million, one hundred twenty-one thousand, fifty-one".