1541491 has 12 divisors (see below), whose sum is σ = 1813512. Its totient is φ = 1306368.

The previous prime is 1541471. The next prime is 1541497. The reversal of 1541491 is 1941451.

It is not a de Polignac number, because 1541491 - 2⁷ = 1541363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1541497) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7891 + ... + 8083.

It is an arithmetic number, because the mean of its divisors is an integer number (151126).

2^1541491 is an apocalyptic number.

1541491 is a deficient number, since it is larger than the sum of its proper divisors (272021).

1541491 is a wasteful number, since it uses less digits than its factorization.

1541491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370 (or 363 counting only the distinct ones).

The product of its digits is 720, while the sum is 25.

The square root of 1541491 is about 1241.5679602825. The cubic root of 1541491 is about 115.5172915648.

The spelling of 1541491 in words is "one million, five hundred forty-one thousand, four hundred ninety-one".