4540139148 has 24 divisors (see below), whose sum is σ = 11151219520. Its totient is φ = 1433728080.

The previous prime is 4540139147. The next prime is 4540139179. The reversal of 4540139148 is 8419310454.

It is a super-2 number, since 2×4540139148² = 41225726966404331808, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4540139147) 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, 9956218 + ... + 9956673.

Almost surely, 2^4540139148 is an apocalyptic number.

It is an amenable number.

4540139148 is an abundant number, since it is smaller than the sum of its proper divisors (6611080372).

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

4540139148 is a wasteful number, since it uses less digits than its factorization.

4540139148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19912917 (or 19912915 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 4540139148 is about 67380.5546726947. The cubic root of 4540139148 is about 1655.8578622549.

The spelling of 4540139148 in words is "four billion, five hundred forty million, one hundred thirty-nine thousand, one hundred forty-eight".