131819070 has 16 divisors (see below), whose sum is σ = 316365840. Its totient is φ = 35151744.

The previous prime is 131819033. The next prime is 131819081. The reversal of 131819070 is 70918131.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 4393969 = 131819070 / (1 + 3 + 1 + 8 + 1 + 9 + 0 + 7 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2196955 + ... + 2197014.

It is an arithmetic number, because the mean of its divisors is an integer number (19772865).

Almost surely, 2^131819070 is an apocalyptic number.

131819070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131819070 is an abundant number, since it is smaller than the sum of its proper divisors (184546770).

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

131819070 is a wasteful number, since it uses less digits than its factorization.

131819070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4393979.

The product of its (nonzero) digits is 1512, while the sum is 30.

The square root of 131819070 is about 11481.2486254762. The cubic root of 131819070 is about 508.9315964961.

The spelling of 131819070 in words is "one hundred thirty-one million, eight hundred nineteen thousand, seventy".