145542078 has 24 divisors (see below), whose sum is σ = 344009016. Its totient is φ = 44103600.

The previous prime is 145542073. The next prime is 145542101. The reversal of 145542078 is 870245541.

145542078 is a `hidden beast` number, since 1 + 45 + 542 + 0 + 78 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145542073) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 367333 + ... + 367728.

It is an arithmetic number, because the mean of its divisors is an integer number (14333709).

Almost surely, 2^145542078 is an apocalyptic number.

145542078 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

145542078 is an abundant number, since it is smaller than the sum of its proper divisors (198466938).

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

145542078 is a wasteful number, since it uses less digits than its factorization.

145542078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735080 (or 735077 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 36.

The square root of 145542078 is about 12064.0821449458. The cubic root of 145542078 is about 526.0126522809.

The spelling of 145542078 in words is "one hundred forty-five million, five hundred forty-two thousand, seventy-eight".