1345780158 has 16 divisors (see below), whose sum is σ = 2691981840. Its totient is φ = 448523136.

The previous prime is 1345780151. The next prime is 1345780171. The reversal of 1345780158 is 8510875431.

It is a super-2 number, since 2×1345780158² = 3622248467333009928, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345780151) 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, 36966 + ... + 63702.

It is an arithmetic number, because the mean of its divisors is an integer number (168248865).

Almost surely, 2^1345780158 is an apocalyptic number.

1345780158 is an abundant number, since it is smaller than the sum of its proper divisors (1346201682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1345780158 is a wasteful number, since it uses less digits than its factorization.

1345780158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35131.

The product of its (nonzero) digits is 134400, while the sum is 42.

The square root of 1345780158 is about 36684.8764206723. The cubic root of 1345780158 is about 1104.0566898137.

The spelling of 1345780158 in words is "one billion, three hundred forty-five million, seven hundred eighty thousand, one hundred fifty-eight".