136425856 has 64 divisors (see below), whose sum is σ = 313735680. Its totient is φ = 57881088.

The previous prime is 136425847. The next prime is 136425893. The reversal of 136425856 is 658524631.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×136425856² = 37224028370665472, which contains 22 as substring.

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, 95161 + ... + 96583.

It is an arithmetic number, because the mean of its divisors is an integer number (4902120).

Almost surely, 2^136425856 is an apocalyptic number.

136425856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136425856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156867840).

136425856 is an abundant number, since it is smaller than the sum of its proper divisors (177309824).

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

136425856 is a wasteful number, since it uses less digits than its factorization.

136425856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1551 (or 1539 counting only the distinct ones).

The product of its digits is 172800, while the sum is 40.

The square root of 136425856 is about 11680.1479442685. The cubic root of 136425856 is about 514.7925214450.

The spelling of 136425856 in words is "one hundred thirty-six million, four hundred twenty-five thousand, eight hundred fifty-six".