1340997255 has 96 divisors (see below), whose sum is σ = 2632564800. Its totient is φ = 647142912.

The previous prime is 1340997239. The next prime is 1340997263. The reversal of 1340997255 is 5527990431.

It is a happy number.

It is not a de Polignac number, because 1340997255 - 2⁴ = 1340997239 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1340997255.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1208641 + ... + 1209749.

It is an arithmetic number, because the mean of its divisors is an integer number (27422550).

Almost surely, 2^1340997255 is an apocalyptic number.

1340997255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1340997255 is a deficient number, since it is larger than the sum of its proper divisors (1291567545).

1340997255 is a wasteful number, since it uses less digits than its factorization.

1340997255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202 (or 1183 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

The square root of 1340997255 is about 36619.6293673216. The cubic root of 1340997255 is about 1102.7471980293.

The spelling of 1340997255 in words is "one billion, three hundred forty million, nine hundred ninety-seven thousand, two hundred fifty-five".