91061942 has 8 divisors (see below), whose sum is σ = 140999232. Its totient is φ = 44062200.

The previous prime is 91061941. The next prime is 91061947. The reversal of 91061942 is 24916019.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×91061942² = 16584554561622728, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 91061899 and 91061908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91061941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 734309 + ... + 734432.

It is an arithmetic number, because the mean of its divisors is an integer number (17624904).

Almost surely, 2^91061942 is an apocalyptic number.

91061942 is a deficient number, since it is larger than the sum of its proper divisors (49937290).

91061942 is a wasteful number, since it uses less digits than its factorization.

91061942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1468774.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 91061942 is about 9542.6381048429. The cubic root of 91061942 is about 449.8961768710.

The spelling of 91061942 in words is "ninety-one million, sixty-one thousand, nine hundred forty-two".