1308542136 has 32 divisors (see below), whose sum is σ = 3568752000. Its totient is φ = 396527840.

The previous prime is 1308542119. The next prime is 1308542143. The reversal of 1308542136 is 6312458031.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 1308542097 and 1308542106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2478036 + ... + 2478563.

It is an arithmetic number, because the mean of its divisors is an integer number (111523500).

Almost surely, 2^1308542136 is an apocalyptic number.

It is an amenable number.

1308542136 is an abundant number, since it is smaller than the sum of its proper divisors (2260209864).

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

1308542136 is a wasteful number, since it uses less digits than its factorization.

1308542136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4956619 (or 4956615 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 1308542136 is about 36173.7769109061. The cubic root of 1308542136 is about 1093.7781345862.

The spelling of 1308542136 in words is "one billion, three hundred eight million, five hundred forty-two thousand, one hundred thirty-six".