146015540 has 36 divisors (see below), whose sum is σ = 337048068. Its totient is φ = 53095680.

The previous prime is 146015531. The next prime is 146015543. The reversal of 146015540 is 45510641.

It can be written as a sum of positive squares in 2 ways, for example, as 31225744 + 114789796 = 5588^2 + 10714^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146015543) 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, 27749 + ... + 32588.

Almost surely, 2^146015540 is an apocalyptic number.

146015540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

146015540 is an abundant number, since it is smaller than the sum of its proper divisors (191032528).

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

146015540 is a wasteful number, since it uses less digits than its factorization.

146015540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60368 (or 60355 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 146015540 is about 12083.6890062596. The cubic root of 146015540 is about 526.5824243474.

The spelling of 146015540 in words is "one hundred forty-six million, fifteen thousand, five hundred forty".