1541533690 has 16 divisors (see below), whose sum is σ = 2776495392. Its totient is φ = 616227984.

The previous prime is 1541533649. The next prime is 1541533711. The reversal of 1541533690 is 963351451.

It is a happy number.

It is a super-2 number, since 2×1541533690² = 4752652234810032200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31104 + ... + 63643.

It is an arithmetic number, because the mean of its divisors is an integer number (173530962).

Almost surely, 2^1541533690 is an apocalyptic number.

1541533690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1541533690 is a deficient number, since it is larger than the sum of its proper divisors (1234961702).

1541533690 is a wasteful number, since it uses less digits than its factorization.

1541533690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96381.

The product of its (nonzero) digits is 48600, while the sum is 37.

The square root of 1541533690 is about 39262.3698979061. The cubic root of 1541533690 is about 1155.1835793229.

The spelling of 1541533690 in words is "one billion, five hundred forty-one million, five hundred thirty-three thousand, six hundred ninety".