136743551 has 24 divisors (see below), whose sum is σ = 168213024. Its totient is φ = 108838080.

The previous prime is 136743499. The next prime is 136743557. The reversal of 136743551 is 155347631.

136743551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 136743551 - 2¹⁴ = 136727167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136743557) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 133421 + ... + 134441.

It is an arithmetic number, because the mean of its divisors is an integer number (7008876).

Almost surely, 2^136743551 is an apocalyptic number.

136743551 is a deficient number, since it is larger than the sum of its proper divisors (31469473).

136743551 is a wasteful number, since it uses less digits than its factorization.

136743551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119 (or 1100 counting only the distinct ones).

The product of its digits is 37800, while the sum is 35.

The square root of 136743551 is about 11693.7398209469. The cubic root of 136743551 is about 515.1918109155.

The spelling of 136743551 in words is "one hundred thirty-six million, seven hundred forty-three thousand, five hundred fifty-one".