1351656031 has 6 divisors (see below), whose sum is σ = 1485704696. Its totient is φ = 1228778100.

The previous prime is 1351656013. The next prime is 1351656073. The reversal of 1351656031 is 1306561531.

It is not a de Polignac number, because 1351656031 - 2¹¹ = 1351653983 is a prime.

It is a super-3 number, since 3×1351656031³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1351655984 and 1351656002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1351656001) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 5585235 + ... + 5585476.

Almost surely, 2^1351656031 is an apocalyptic number.

1351656031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1351656031 is a deficient number, since it is larger than the sum of its proper divisors (134048665).

1351656031 is a wasteful number, since it uses less digits than its factorization.

1351656031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11170733 (or 11170722 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 1351656031 is about 36764.8749623877. The cubic root of 1351656031 is about 1105.6611812544.

The spelling of 1351656031 in words is "one billion, three hundred fifty-one million, six hundred fifty-six thousand, thirty-one".