1631486142 has 48 divisors (see below), whose sum is σ = 4152880368. Its totient is φ = 456359040.

The previous prime is 1631486123. The next prime is 1631486173. The reversal of 1631486142 is 2416841361.

1631486142 is a `hidden beast` number, since 1 + 6 + 31 + 4 + 8 + 614 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1631486097 and 1631486106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 314343 + ... + 319490.

It is an arithmetic number, because the mean of its divisors is an integer number (86518341).

Almost surely, 2^1631486142 is an apocalyptic number.

1631486142 is an abundant number, since it is smaller than the sum of its proper divisors (2521394226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1631486142 is a wasteful number, since it uses less digits than its factorization.

1631486142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633865 (or 633862 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 1631486142 is about 40391.6593122887. The cubic root of 1631486142 is about 1177.2294817185.

The spelling of 1631486142 in words is "one billion, six hundred thirty-one million, four hundred eighty-six thousand, one hundred forty-two".