1351123950 has 96 divisors (see below), whose sum is σ = 3668550912. Its totient is φ = 326368000.

The previous prime is 1351123927. The next prime is 1351123957. The reversal of 1351123950 is 593211531.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1351123957) 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 47 ways as a sum of consecutive naturals, for example, 511834 + ... + 514466.

It is an arithmetic number, because the mean of its divisors is an integer number (38214072).

Almost surely, 2^1351123950 is an apocalyptic number.

1351123950 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 1351123950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1834275456).

1351123950 is an abundant number, since it is smaller than the sum of its proper divisors (2317426962).

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

1351123950 is a wasteful number, since it uses less digits than its factorization.

1351123950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2970 (or 2965 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 30.

The square root of 1351123950 is about 36757.6379817855. The cubic root of 1351123950 is about 1105.5160806012.

The spelling of 1351123950 in words is "one billion, three hundred fifty-one million, one hundred twenty-three thousand, nine hundred fifty".