1345552403 has 8 divisors (see below), whose sum is σ = 1453438896. Its totient is φ = 1238292000.

The previous prime is 1345552381. The next prime is 1345552409. The reversal of 1345552403 is 3042555431.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1345552403 - 2⁸ = 1345552147 is a prime.

It is a super-2 number, since 2×1345552403² = 3621022538438148818, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1345552403.

It is not an unprimeable number, because it can be changed into a prime (1345552409) 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, 152048 + ... + 160653.

It is an arithmetic number, because the mean of its divisors is an integer number (181679862).

Almost surely, 2^1345552403 is an apocalyptic number.

1345552403 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1345552403 is a deficient number, since it is larger than the sum of its proper divisors (107886493).

1345552403 is a wasteful number, since it uses less digits than its factorization.

1345552403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313045.

The product of its (nonzero) digits is 36000, while the sum is 32.

The square root of 1345552403 is about 36681.7720809669. The cubic root of 1345552403 is about 1103.9944041037.

The spelling of 1345552403 in words is "one billion, three hundred forty-five million, five hundred fifty-two thousand, four hundred three".