105691542 has 32 divisors (see below), whose sum is σ = 230964480. Its totient is φ = 31977120.

The previous prime is 105691513. The next prime is 105691543. The reversal of 105691542 is 245196501.

It is a super-2 number, since 2×105691542² = 22341404100675528, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105691543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80463 + ... + 81765.

It is an arithmetic number, because the mean of its divisors is an integer number (7217640).

Almost surely, 2^105691542 is an apocalyptic number.

105691542 is an abundant number, since it is smaller than the sum of its proper divisors (125272938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105691542 is a wasteful number, since it uses less digits than its factorization.

105691542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2548.

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 105691542 is about 10280.6391824633. The cubic root of 105691542 is about 472.8028416061.

The spelling of 105691542 in words is "one hundred five million, six hundred ninety-one thousand, five hundred forty-two".