1345516405 has 16 divisors (see below), whose sum is σ = 1674643968. Its totient is φ = 1036728000.

The previous prime is 1345516301. The next prime is 1345516409. The reversal of 1345516405 is 5046155431.

It is not a de Polignac number, because 1345516405 - 2²⁹ = 808645493 is a prime.

It is a super-2 number, since 2×1345516405² = 3620828792248248050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345516409) 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, 12135 + ... + 53275.

It is an arithmetic number, because the mean of its divisors is an integer number (104665248).

Almost surely, 2^1345516405 is an apocalyptic number.

It is an amenable number.

1345516405 is a deficient number, since it is larger than the sum of its proper divisors (329127563).

1345516405 is a wasteful number, since it uses less digits than its factorization.

1345516405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41388.

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 1345516405 is about 36681.2813980101. The cubic root of 1345516405 is about 1103.9845588424.

The spelling of 1345516405 in words is "one billion, three hundred forty-five million, five hundred sixteen thousand, four hundred five".