387470131 has 16 divisors (see below), whose sum is σ = 412251840. Its totient is φ = 363525120.

The previous prime is 387470123. The next prime is 387470141. The reversal of 387470131 is 131074783.

It is a cyclic number.

It is not a de Polignac number, because 387470131 - 2³ = 387470123 is a prime.

It is a super-2 number, since 2×387470131² = 300266204834314322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (387470141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 400210 + ... + 401176.

It is an arithmetic number, because the mean of its divisors is an integer number (25765740).

Almost surely, 2^387470131 is an apocalyptic number.

387470131 is a deficient number, since it is larger than the sum of its proper divisors (24781709).

387470131 is a wasteful number, since it uses less digits than its factorization.

387470131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1374.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 387470131 is about 19684.2609970504. The cubic root of 387470131 is about 729.0311353972.

The spelling of 387470131 in words is "three hundred eighty-seven million, four hundred seventy thousand, one hundred thirty-one".