1540363121 has 8 divisors (see below), whose sum is σ = 1684509600. Its totient is φ = 1396902240.

The previous prime is 1540363103. The next prime is 1540363127. The reversal of 1540363121 is 1213630451.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1540363121 - 2¹⁴ = 1540346737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1540363127) 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, 166691 + ... + 175688.

It is an arithmetic number, because the mean of its divisors is an integer number (210563700).

Almost surely, 2^1540363121 is an apocalyptic number.

1540363121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1540363121 is a deficient number, since it is larger than the sum of its proper divisors (144146479).

1540363121 is a wasteful number, since it uses less digits than its factorization.

1540363121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342799.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 1540363121 is about 39247.4600579452. The cubic root of 1540363121 is about 1154.8911077166.

Adding to 1540363121 its reverse (1213630451), we get a palindrome (2753993572).

The spelling of 1540363121 in words is "one billion, five hundred forty million, three hundred sixty-three thousand, one hundred twenty-one".