1950590155 has 4 divisors (see below), whose sum is σ = 2340708192. Its totient is φ = 1560472120.

The previous prime is 1950590119. The next prime is 1950590167. The reversal of 1950590155 is 5510950591.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1950590155 - 2¹⁷ = 1950459083 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195059011 + ... + 195059020.

It is an arithmetic number, because the mean of its divisors is an integer number (585177048).

Almost surely, 2^1950590155 is an apocalyptic number.

1950590155 is a deficient number, since it is larger than the sum of its proper divisors (390118037).

1950590155 is an equidigital number, since it uses as much as digits as its factorization.

1950590155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390118036.

The product of its (nonzero) digits is 50625, while the sum is 40.

The square root of 1950590155 is about 44165.4860156661. The cubic root of 1950590155 is about 1249.4589989547.

The spelling of 1950590155 in words is "one billion, nine hundred fifty million, five hundred ninety thousand, one hundred fifty-five".