102154040 has 64 divisors (see below), whose sum is σ = 246404160. Its totient is φ = 38016000.

The previous prime is 102154027. The next prime is 102154049. The reversal of 102154040 is 40451201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102154049) 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, 32540 + ... + 35540.

It is an arithmetic number, because the mean of its divisors is an integer number (3850065).

Almost surely, 2^102154040 is an apocalyptic number.

102154040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102154040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123202080).

102154040 is an abundant number, since it is smaller than the sum of its proper divisors (144250120).

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

102154040 is a wasteful number, since it uses less digits than its factorization.

102154040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3072 (or 3068 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 102154040 is about 10107.1281776774. The cubic root of 102154040 is about 467.4679589506.

The spelling of 102154040 in words is "one hundred two million, one hundred fifty-four thousand, forty".