1351607556 has 48 divisors (see below), whose sum is σ = 3442901504. Its totient is φ = 410178816.

The previous prime is 1351607527. The next prime is 1351607563. The reversal of 1351607556 is 6557061531.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47956 + ... + 70731.

Almost surely, 2^1351607556 is an apocalyptic number.

It is an amenable number.

1351607556 is an abundant number, since it is smaller than the sum of its proper divisors (2091293948).

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

1351607556 is a wasteful number, since it uses less digits than its factorization.

1351607556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118780 (or 118778 counting only the distinct ones).

The product of its (nonzero) digits is 94500, while the sum is 39.

The square root of 1351607556 is about 36764.2156995087. The cubic root of 1351607556 is about 1105.6479635014.

The spelling of 1351607556 in words is "one billion, three hundred fifty-one million, six hundred seven thousand, five hundred fifty-six".