1420571157 has 16 divisors (see below), whose sum is σ = 2042416320. Its totient is φ = 875318400.

The previous prime is 1420571147. The next prime is 1420571179. The reversal of 1420571157 is 7511750241.

It is not a de Polignac number, because 1420571157 - 2¹² = 1420567061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420571107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 301594 + ... + 306267.

It is an arithmetic number, because the mean of its divisors is an integer number (127651020).

Almost surely, 2^1420571157 is an apocalyptic number.

It is an amenable number.

1420571157 is a deficient number, since it is larger than the sum of its proper divisors (621845163).

1420571157 is a wasteful number, since it uses less digits than its factorization.

1420571157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607924.

The product of its (nonzero) digits is 9800, while the sum is 33.

The square root of 1420571157 is about 37690.4650674411. The cubic root of 1420571157 is about 1124.1415428295.

The spelling of 1420571157 in words is "one billion, four hundred twenty million, five hundred seventy-one thousand, one hundred fifty-seven".