1601427487 has 8 divisors (see below), whose sum is σ = 1789622352. Its totient is φ = 1420334400.

The previous prime is 1601427461. The next prime is 1601427491. The reversal of 1601427487 is 7847241061.

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 not a de Polignac number, because 1601427487 - 2¹⁵ = 1601394719 is a prime.

It is a super-2 number, since 2×1601427487² = 5129139992238270338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1601427437) 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, 1774968 + ... + 1775869.

It is an arithmetic number, because the mean of its divisors is an integer number (223702794).

Almost surely, 2^1601427487 is an apocalyptic number.

1601427487 is a deficient number, since it is larger than the sum of its proper divisors (188194865).

1601427487 is a wasteful number, since it uses less digits than its factorization.

1601427487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3550889.

The product of its (nonzero) digits is 75264, while the sum is 40.

The square root of 1601427487 is about 40017.8396093542. The cubic root of 1601427487 is about 1169.9548250023.

The spelling of 1601427487 in words is "one billion, six hundred one million, four hundred twenty-seven thousand, four hundred eighty-seven".