1540051 has 8 divisors (see below), whose sum is σ = 1600560. Its totient is φ = 1480608.

The previous prime is 1540039. The next prime is 1540073. The reversal of 1540051 is 1500451.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1540051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1540031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3765 + ... + 4153.

It is an arithmetic number, because the mean of its divisors is an integer number (200070).

2^1540051 is an apocalyptic number.

1540051 is a deficient number, since it is larger than the sum of its proper divisors (60509).

1540051 is a wasteful number, since it uses less digits than its factorization.

1540051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 1540051 is about 1240.9879129145. The cubic root of 1540051 is about 115.4813097947.

It can be divided in two parts, 15400 and 51, that added together give a palindrome (15451).

The spelling of 1540051 in words is "one million, five hundred forty thousand, fifty-one".