94136140 has 96 divisors (see below), whose sum is σ = 245911680. Its totient is φ = 29528064.

The previous prime is 94136137. The next prime is 94136143. The reversal of 94136140 is 4163149.

It is an interprime number because it is at equal distance from previous prime (94136137) and next prime (94136143).

It is a super-2 number, since 2×94136140² = 17723225708199200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 94136099 and 94136108.

It is not an unprimeable number, because it can be changed into a prime (94136143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87526 + ... + 88594.

It is an arithmetic number, because the mean of its divisors is an integer number (2561580).

Almost surely, 2^94136140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 94136140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122955840).

94136140 is an abundant number, since it is smaller than the sum of its proper divisors (151775540).

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

94136140 is a wasteful number, since it uses less digits than its factorization.

94136140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1139 (or 1137 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 94136140 is about 9702.3780590121. The cubic root of 94136140 is about 454.9029942537.

Adding to 94136140 its reverse (4163149), we get a palindrome (98299289).

The spelling of 94136140 in words is "ninety-four million, one hundred thirty-six thousand, one hundred forty".