1540154 has 32 divisors (see below), whose sum is σ = 2941056. Its totient is φ = 587520.

The previous prime is 1540153. The next prime is 1540157. The reversal of 1540154 is 4510451.

It is not an unprimeable number, because it can be changed into a prime (1540151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11174 + ... + 11310.

It is an arithmetic number, because the mean of its divisors is an integer number (91908).

2^1540154 is an apocalyptic number.

1540154 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1540154 is a deficient number, since it is larger than the sum of its proper divisors (1400902).

1540154 is a wasteful number, since it uses less digits than its factorization.

1540154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 1540154 is about 1241.0294114162. The cubic root of 1540154 is about 115.4838842354.

The spelling of 1540154 in words is "one million, five hundred forty thousand, one hundred fifty-four".