1351001025 has 168 divisors, whose sum is σ = 2868941376. Its totient is φ = 624412800.

The previous prime is 1351001021. The next prime is 1351001027. The reversal of 1351001025 is 5201001531.

It is not a de Polignac number, because 1351001025 - 2² = 1351001021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1351000989 and 1351001007.

It is not an unprimeable number, because it can be changed into a prime (1351001021) by changing a digit.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 4610779 + ... + 4611071.

It is an arithmetic number, because the mean of its divisors is an integer number (17077032).

Almost surely, 2^1351001025 is an apocalyptic number.

1351001025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1351001025 is an abundant number, since it is smaller than the sum of its proper divisors (1517940351).

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

1351001025 is a wasteful number, since it uses less digits than its factorization.

1351001025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355 (or 335 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 1351001025 is about 36755.9658422956. The cubic root of 1351001025 is about 1105.4825530368.

Adding to 1351001025 its reverse (5201001531), we get a palindrome (6552002556).

The spelling of 1351001025 in words is "one billion, three hundred fifty-one million, one thousand, twenty-five".