1540163154 has 8 divisors (see below), whose sum is σ = 3080326320. Its totient is φ = 513387716.

The previous prime is 1540163057. The next prime is 1540163159. The reversal of 1540163154 is 4513610451.

It is a happy number.

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

1540163154 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1540163159) 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, 128346924 + ... + 128346935.

It is an arithmetic number, because the mean of its divisors is an integer number (385040790).

Almost surely, 2^1540163154 is an apocalyptic number.

1540163154 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1540163154 is a wasteful number, since it uses less digits than its factorization.

1540163154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256693864.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 1540163154 is about 39244.9124600884. The cubic root of 1540163154 is about 1154.8411303009.

The spelling of 1540163154 in words is "one billion, five hundred forty million, one hundred sixty-three thousand, one hundred fifty-four".