1540254141 has 12 divisors (see below), whose sum is σ = 2246840700. Its totient is φ = 1016668800.

The previous prime is 1540254139. The next prime is 1540254143. The reversal of 1540254141 is 1414520451.

It is an interprime number because it is at equal distance from previous prime (1540254139) and next prime (1540254143).

It can be written as a sum of positive squares in 2 ways, for example, as 1478710116 + 61544025 = 38454^2 + 7845^2 .

It is not a de Polignac number, because 1540254141 - 2¹ = 1540254139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1540254143) 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, 846316 + ... + 848133.

It is an arithmetic number, because the mean of its divisors is an integer number (187236725).

Almost surely, 2^1540254141 is an apocalyptic number.

It is an amenable number.

1540254141 is a deficient number, since it is larger than the sum of its proper divisors (706586559).

1540254141 is a wasteful number, since it uses less digits than its factorization.

1540254141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694556 (or 1694553 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 1540254141 is about 39246.0716632888. The cubic root of 1540254141 is about 1154.8638710650.

Adding to 1540254141 its reverse (1414520451), we get a palindrome (2954774592).

The spelling of 1540254141 in words is "one billion, five hundred forty million, two hundred fifty-four thousand, one hundred forty-one".