145555340 has 24 divisors (see below), whose sum is σ = 349333152. Its totient is φ = 49904640.

The previous prime is 145555337. The next prime is 145555349. The reversal of 145555340 is 43555541.

It is a junction number, because it is equal to n+sod(n) for n = 145555297 and 145555306.

It is not an unprimeable number, because it can be changed into a prime (145555349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 519701 + ... + 519980.

It is an arithmetic number, because the mean of its divisors is an integer number (14555548).

Almost surely, 2^145555340 is an apocalyptic number.

145555340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145555340 is an abundant number, since it is smaller than the sum of its proper divisors (203777812).

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

145555340 is a wasteful number, since it uses less digits than its factorization.

145555340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039697 (or 1039695 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 32.

The square root of 145555340 is about 12064.6317805393. The cubic root of 145555340 is about 526.0286288012.

The spelling of 145555340 in words is "one hundred forty-five million, five hundred fifty-five thousand, three hundred forty".