961751155 has 4 divisors (see below), whose sum is σ = 1154101392. Its totient is φ = 769400920.

The previous prime is 961751137. The next prime is 961751171. The reversal of 961751155 is 551157169.

961751155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 551157169 = 1009 ⋅546241.

It is not a de Polignac number, because 961751155 - 2⁵ = 961751123 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, 96175111 + ... + 96175120.

It is an arithmetic number, because the mean of its divisors is an integer number (288525348).

Almost surely, 2^961751155 is an apocalyptic number.

961751155 is a deficient number, since it is larger than the sum of its proper divisors (192350237).

961751155 is a wasteful number, since it uses less digits than its factorization.

961751155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192350236.

The product of its digits is 47250, while the sum is 40.

The square root of 961751155 is about 31012.1130366829. The cubic root of 961751155 is about 987.0842875529.

The spelling of 961751155 in words is "nine hundred sixty-one million, seven hundred fifty-one thousand, one hundred fifty-five".