1345478757 has 16 divisors (see below), whose sum is σ = 2050836480. Its totient is φ = 768626352.

The previous prime is 1345478747. The next prime is 1345478759. The reversal of 1345478757 is 7578745431.

It is not a de Polignac number, because 1345478757 - 2¹² = 1345474661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345478759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93208 + ... + 106670.

It is an arithmetic number, because the mean of its divisors is an integer number (128177280).

Almost surely, 2^1345478757 is an apocalyptic number.

It is an amenable number.

1345478757 is a deficient number, since it is larger than the sum of its proper divisors (705357723).

1345478757 is a wasteful number, since it uses less digits than its factorization.

1345478757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18232.

The product of its digits is 3292800, while the sum is 51.

The square root of 1345478757 is about 36680.7682171462. The cubic root of 1345478757 is about 1103.9742621271.

The spelling of 1345478757 in words is "one billion, three hundred forty-five million, four hundred seventy-eight thousand, seven hundred fifty-seven".