1537490385 has 24 divisors (see below), whose sum is σ = 2665990080. Its totient is φ = 819685152.

The previous prime is 1537490369. The next prime is 1537490399. The reversal of 1537490385 is 5830947351.

1537490385 is a `hidden beast` number, since 153 + 7 + 490 + 3 + 8 + 5 = 666.

It is not a de Polignac number, because 1537490385 - 2⁴ = 1537490369 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1537490385.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 162762 + ... + 171948.

It is an arithmetic number, because the mean of its divisors is an integer number (111082920).

Almost surely, 2^1537490385 is an apocalyptic number.

1537490385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1537490385 is a deficient number, since it is larger than the sum of its proper divisors (1128499695).

1537490385 is a wasteful number, since it uses less digits than its factorization.

1537490385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12917 (or 12914 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The square root of 1537490385 is about 39210.8452472017. The cubic root of 1537490385 is about 1154.1727139328.

The spelling of 1537490385 in words is "one billion, five hundred thirty-seven million, four hundred ninety thousand, three hundred eighty-five".