1401057487 has 8 divisors (see below), whose sum is σ = 1408466304. Its totient is φ = 1393659168.

The previous prime is 1401057479. The next prime is 1401057517. The reversal of 1401057487 is 7847501041.

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 1401057487 - 2³ = 1401057479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401057407) 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, 518913 + ... + 521605.

It is an arithmetic number, because the mean of its divisors is an integer number (176058288).

Almost surely, 2^1401057487 is an apocalyptic number.

1401057487 is a deficient number, since it is larger than the sum of its proper divisors (7408817).

1401057487 is a wasteful number, since it uses less digits than its factorization.

1401057487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5249.

The product of its (nonzero) digits is 31360, while the sum is 37.

The square root of 1401057487 is about 37430.7024646880. The cubic root of 1401057487 is about 1118.9705376242.

The spelling of 1401057487 in words is "one billion, four hundred one million, fifty-seven thousand, four hundred eighty-seven".