1351255290 has 256 divisors, whose sum is σ = 4369489920. Its totient is φ = 259015680.

The previous prime is 1351255289. The next prime is 1351255309. The reversal of 1351255290 is 925521531.

It is a Harshad number since it is a multiple of its sum of digits (33).

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 127 ways as a sum of consecutive naturals, for example, 1540332 + ... + 1541208.

It is an arithmetic number, because the mean of its divisors is an integer number (17068320).

Almost surely, 2^1351255290 is an apocalyptic number.

1351255290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1351255290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2184744960).

1351255290 is an abundant number, since it is smaller than the sum of its proper divisors (3018234630).

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

1351255290 is a wasteful number, since it uses less digits than its factorization.

1351255290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957.

The product of its (nonzero) digits is 13500, while the sum is 33.

The square root of 1351255290 is about 36759.4245058325. The cubic root of 1351255290 is about 1105.5519010940.

The spelling of 1351255290 in words is "one billion, three hundred fifty-one million, two hundred fifty-five thousand, two hundred ninety".