91454136 has 16 divisors (see below), whose sum is σ = 228635400. Its totient is φ = 30484704.

The previous prime is 91454119. The next prime is 91454137. The reversal of 91454136 is 63145419.

It is a junction number, because it is equal to n+sod(n) for n = 91454097 and 91454106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91454137) 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, 1905271 + ... + 1905318.

Almost surely, 2^91454136 is an apocalyptic number.

It is an amenable number.

91454136 is an abundant number, since it is smaller than the sum of its proper divisors (137181264).

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

91454136 is a wasteful number, since it uses less digits than its factorization.

91454136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3810598 (or 3810594 counting only the distinct ones).

The product of its digits is 12960, while the sum is 33.

The square root of 91454136 is about 9563.1655846796. The cubic root of 91454136 is about 450.5411366626.

It can be divided in two parts, 9145413 and 6, that added together give a palindrome (9145419).

The spelling of 91454136 in words is "ninety-one million, four hundred fifty-four thousand, one hundred thirty-six".