1955131270 has 16 divisors (see below), whose sum is σ = 3525564528. Its totient is φ = 780646240.

The previous prime is 1955131231. The next prime is 1955131349. The reversal of 1955131270 is 721315591.

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, 169936 + ... + 181075.

It is an arithmetic number, because the mean of its divisors is an integer number (220347783).

Almost surely, 2^1955131270 is an apocalyptic number.

1955131270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1955131270 is a deficient number, since it is larger than the sum of its proper divisors (1570433258).

1955131270 is a wasteful number, since it uses less digits than its factorization.

1955131270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351575.

The product of its (nonzero) digits is 9450, while the sum is 34.

The square root of 1955131270 is about 44216.8663521060. The cubic root of 1955131270 is about 1250.4278578001.

It can be divided in two parts, 1955 and 131270, that added together give a square (133225 = 365²).

The spelling of 1955131270 in words is "one billion, nine hundred fifty-five million, one hundred thirty-one thousand, two hundred seventy".