1540955 has 16 divisors (see below), whose sum is σ = 2017344. Its totient is φ = 1123200.

The previous prime is 1540949. The next prime is 1540961. The reversal of 1540955 is 5590451.

It is an interprime number because it is at equal distance from previous prime (1540949) and next prime (1540961).

It is not a de Polignac number, because 1540955 - 2⁸ = 1540699 is a prime.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9737 + ... + 9893.

It is an arithmetic number, because the mean of its divisors is an integer number (126084).

2^1540955 is an apocalyptic number.

1540955 is a deficient number, since it is larger than the sum of its proper divisors (476389).

1540955 is a wasteful number, since it uses less digits than its factorization.

1540955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326.

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 1540955 is about 1241.3520854294. The cubic root of 1540955 is about 115.5039009695.

The spelling of 1540955 in words is "one million, five hundred forty thousand, nine hundred fifty-five".