1540164154 has 16 divisors (see below), whose sum is σ = 2320559208. Its totient is φ = 766651392.

The previous prime is 1540164137. The next prime is 1540164211. The reversal of 1540164154 is 4514610451.

It can be written as a sum of positive squares in 4 ways, for example, as 1031887129 + 508277025 = 32123^2 + 22545^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 821362 + ... + 823234.

Almost surely, 2^1540164154 is an apocalyptic number.

1540164154 is a deficient number, since it is larger than the sum of its proper divisors (780395054).

1540164154 is a wasteful number, since it uses less digits than its factorization.

1540164154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3489.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 1540164154 is about 39244.9252005912. The cubic root of 1540164154 is about 1154.8413802400.

The spelling of 1540164154 in words is "one billion, five hundred forty million, one hundred sixty-four thousand, one hundred fifty-four".