154136012053631 has 4 divisors (see below), whose sum is σ = 154192451460264. Its totient is φ = 154079572647000.

The previous prime is 154136012053549. The next prime is 154136012053663. The reversal of 154136012053631 is 136350210631451.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 154136012053631 - 2⁴² = 149737965542527 is a prime.

It is a super-2 number, since 2×154136012053631² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154136012083631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28219699220 + ... + 28219704681.

It is an arithmetic number, because the mean of its divisors is an integer number (38548112865066).

Almost surely, 2^{154136012053631} is an apocalyptic number.

154136012053631 is a deficient number, since it is larger than the sum of its proper divisors (56439406633).

154136012053631 is an equidigital number, since it uses as much as digits as its factorization.

154136012053631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56439406632.

The product of its (nonzero) digits is 194400, while the sum is 41.

The spelling of 154136012053631 in words is "one hundred fifty-four trillion, one hundred thirty-six billion, twelve million, fifty-three thousand, six hundred thirty-one".