1351715772 has 48 divisors (see below), whose sum is σ = 3449843712. Its totient is φ = 408526080.

The previous prime is 1351715767. The next prime is 1351715777. The reversal of 1351715772 is 2775171531.

It is an interprime number because it is at equal distance from previous prime (1351715767) and next prime (1351715777).

It is a super-3 number, since 3×1351715772³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1351715772.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1351715777) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37188 + ... + 63924.

It is an arithmetic number, because the mean of its divisors is an integer number (71871744).

Almost surely, 2^1351715772 is an apocalyptic number.

1351715772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1351715772 is an abundant number, since it is smaller than the sum of its proper divisors (2098127940).

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

1351715772 is a wasteful number, since it uses less digits than its factorization.

1351715772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27138 (or 27136 counting only the distinct ones).

The product of its digits is 51450, while the sum is 39.

The square root of 1351715772 is about 36765.6874272738. The cubic root of 1351715772 is about 1105.6774704902.

The spelling of 1351715772 in words is "one billion, three hundred fifty-one million, seven hundred fifteen thousand, seven hundred seventy-two".