1061961901 has 64 divisors (see below), whose sum is σ = 1494775296. Its totient is φ = 727833600.

The previous prime is 1061961893. The next prime is 1061961919. The reversal of 1061961901 is 1091691601.

1061961901 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1061961901 - 2³ = 1061961893 is a prime.

It is a super-2 number, since 2×1061961901² = 2255526158351067602, which contains 22 as substring.

1061961901 is a strobogrammatic number because it is the same when read upside-down.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1061961941) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1962691 + ... + 1963231.

It is an arithmetic number, because the mean of its divisors is an integer number (23355864).

Almost surely, 2^1061961901 is an apocalyptic number.

1061961901 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1061961901 is a deficient number, since it is larger than the sum of its proper divisors (432813395).

1061961901 is a wasteful number, since it uses less digits than its factorization.

1061961901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662.

The product of its (nonzero) digits is 2916, while the sum is 34.

The square root of 1061961901 is about 32587.7569188185. The cubic root of 1061961901 is about 1020.2414848591.

The spelling of 1061961901 in words is "one billion, sixty-one million, nine hundred sixty-one thousand, nine hundred one".