1031149770 has 128 divisors (see below), whose sum is σ = 2882912256. Its totient is φ = 231192576.

The previous prime is 1031149759. The next prime is 1031149771. The reversal of 1031149770 is 779411301.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1031149771) 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, 4542397 + ... + 4542623.

It is an arithmetic number, because the mean of its divisors is an integer number (22522752).

Almost surely, 2^1031149770 is an apocalyptic number.

1031149770 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 1031149770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1441456128).

1031149770 is an abundant number, since it is smaller than the sum of its proper divisors (1851762486).

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

1031149770 is a wasteful number, since it uses less digits than its factorization.

1031149770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564.

The product of its (nonzero) digits is 5292, while the sum is 33.

The square root of 1031149770 is about 32111.5208297583. The cubic root of 1031149770 is about 1010.2772725001.

The spelling of 1031149770 in words is "one billion, thirty-one million, one hundred forty-nine thousand, seven hundred seventy".