145340540 has 12 divisors (see below), whose sum is σ = 305215176. Its totient is φ = 58136208.

The previous prime is 145340521. The next prime is 145340543. The reversal of 145340540 is 45043541.

145340540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×145340540² = 42247745134983200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145340543) 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, 3633494 + ... + 3633533.

It is an arithmetic number, because the mean of its divisors is an integer number (25434598).

Almost surely, 2^145340540 is an apocalyptic number.

145340540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145340540 is an abundant number, since it is smaller than the sum of its proper divisors (159874636).

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

145340540 is a wasteful number, since it uses less digits than its factorization.

145340540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7267036 (or 7267034 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 145340540 is about 12055.7264401611. The cubic root of 145340540 is about 525.7697431285.

The spelling of 145340540 in words is "one hundred forty-five million, three hundred forty thousand, five hundred forty".