1540953 has 12 divisors (see below), whose sum is σ = 2244528. Its totient is φ = 1018680.

The previous prime is 1540949. The next prime is 1540961. The reversal of 1540953 is 3590451.

It is not a de Polignac number, because 1540953 - 2² = 1540949 is a prime.

It is a super-2 number, since 2×1540953² = 4749072296418, which contains 22 as substring.

It is a Curzon number.

1540953 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1540963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 526 + ... + 1832.

It is an arithmetic number, because the mean of its divisors is an integer number (187044).

2^1540953 is an apocalyptic number.

It is an amenable number.

1540953 is a deficient number, since it is larger than the sum of its proper divisors (703575).

1540953 is a wasteful number, since it uses less digits than its factorization.

1540953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1444 (or 1441 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 1540953 is about 1241.3512798559. The cubic root of 1540953 is about 115.5038509988.

The spelling of 1540953 in words is "one million, five hundred forty thousand, nine hundred fifty-three".