136431356109 has 8 divisors (see below), whose sum is σ = 188181180960. Its totient is φ = 87817884336.

The previous prime is 136431356107. The next prime is 136431356111. The reversal of 136431356109 is 901653134631.

It is an interprime number because it is at equal distance from previous prime (136431356107) and next prime (136431356111).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 136431356109 - 2¹ = 136431356107 is a prime.

It is a super-2 number, since 2×136431356109² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136431356107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 784088167 + ... + 784088340.

It is an arithmetic number, because the mean of its divisors is an integer number (23522647620).

Almost surely, 2^136431356109 is an apocalyptic number.

It is an amenable number.

136431356109 is a deficient number, since it is larger than the sum of its proper divisors (51749824851).

136431356109 is a wasteful number, since it uses less digits than its factorization.

136431356109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1568176539.

The product of its (nonzero) digits is 174960, while the sum is 42.

The spelling of 136431356109 in words is "one hundred thirty-six billion, four hundred thirty-one million, three hundred fifty-six thousand, one hundred nine".