1345551441 has 16 divisors (see below), whose sum is σ = 1940104320. Its totient is φ = 824590080.

The previous prime is 1345551437. The next prime is 1345551469. The reversal of 1345551441 is 1441555431.

It is not a de Polignac number, because 1345551441 - 2² = 1345551437 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1345551401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62181 + ... + 80978.

It is an arithmetic number, because the mean of its divisors is an integer number (121256520).

Almost surely, 2^1345551441 is an apocalyptic number.

It is an amenable number.

1345551441 is a deficient number, since it is larger than the sum of its proper divisors (594552879).

1345551441 is a wasteful number, since it uses less digits than its factorization.

1345551441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143416.

The product of its digits is 24000, while the sum is 33.

The square root of 1345551441 is about 36681.7589681847. The cubic root of 1345551441 is about 1103.9941410041.

The spelling of 1345551441 in words is "one billion, three hundred forty-five million, five hundred fifty-one thousand, four hundred forty-one".