1541645442 has 24 divisors (see below), whose sum is σ = 3536716716. Its totient is φ = 483653376.

The previous prime is 1541645437. The next prime is 1541645453. The reversal of 1541645442 is 2445461451.

1541645442 is a `hidden beast` number, since 1 + 5 + 4 + 1 + 645 + 4 + 4 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1493745201 + 47900241 = 38649^2 + 6921^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1541645397 and 1541645406.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2518723 + ... + 2519334.

Almost surely, 2^1541645442 is an apocalyptic number.

1541645442 is an abundant number, since it is smaller than the sum of its proper divisors (1995071274).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1541645442 is a wasteful number, since it uses less digits than its factorization.

1541645442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5038082 (or 5038079 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

The square root of 1541645442 is about 39263.7930159581. The cubic root of 1541645442 is about 1155.2114932886.

The spelling of 1541645442 in words is "one billion, five hundred forty-one million, six hundred forty-five thousand, four hundred forty-two".