131222070 has 96 divisors (see below), whose sum is σ = 402554880. Its totient is φ = 29021760.

The previous prime is 131222059. The next prime is 131222093. The reversal of 131222070 is 70222131.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16171 + ... + 22889.

It is an arithmetic number, because the mean of its divisors is an integer number (4193280).

Almost surely, 2^131222070 is an apocalyptic number.

131222070 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 131222070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201277440).

131222070 is an abundant number, since it is smaller than the sum of its proper divisors (271332810).

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

131222070 is a wasteful number, since it uses less digits than its factorization.

131222070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6770 (or 6767 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 131222070 is about 11455.2202073989. The cubic root of 131222070 is about 508.1621276593.

The spelling of 131222070 in words is "one hundred thirty-one million, two hundred twenty-two thousand, seventy".