1351671020 has 192 divisors, whose sum is σ = 3675248640. Its totient is φ = 406425600.

The previous prime is 1351671007. The next prime is 1351671023. The reversal of 1351671020 is 201761531.

It is not an unprimeable number, because it can be changed into a prime (1351671023) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3210410 + ... + 3210830.

It is an arithmetic number, because the mean of its divisors is an integer number (19141920).

Almost surely, 2^1351671020 is an apocalyptic number.

1351671020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1351671020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1837624320).

1351671020 is an abundant number, since it is smaller than the sum of its proper divisors (2323577620).

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

1351671020 is a wasteful number, since it uses less digits than its factorization.

1351671020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544 (or 542 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 1351671020 is about 36765.0788112850. The cubic root of 1351671020 is about 1105.6652682641.

The spelling of 1351671020 in words is "one billion, three hundred fifty-one million, six hundred seventy-one thousand, twenty".