1275135150 has 96 divisors (see below), whose sum is σ = 3395996928. Its totient is φ = 315481600.

The previous prime is 1275135149. The next prime is 1275135151. The reversal of 1275135150 is 515315721.

It is an interprime number because it is at equal distance from previous prime (1275135149) and next prime (1275135151).

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 (1275135151) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 177529 + ... + 184571.

It is an arithmetic number, because the mean of its divisors is an integer number (35374968).

Almost surely, 2^1275135150 is an apocalyptic number.

1275135150 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 1275135150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1697998464).

1275135150 is an abundant number, since it is smaller than the sum of its proper divisors (2120861778).

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

1275135150 is a wasteful number, since it uses less digits than its factorization.

1275135150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7146 (or 7141 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 30.

The square root of 1275135150 is about 35709.0345710998. The cubic root of 1275135150 is about 1084.3897550224.

The spelling of 1275135150 in words is "one billion, two hundred seventy-five million, one hundred thirty-five thousand, one hundred fifty".