154102135451644 has 48 divisors (see below), whose sum is σ = 273992917312800. Its totient is φ = 75827080626176.

The previous prime is 154102135451623. The next prime is 154102135451647. The reversal of 154102135451644 is 446154531201451.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 154102135451594 and 154102135451603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154102135451647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111758427 + ... + 113128909.

It is an arithmetic number, because the mean of its divisors is an integer number (5708185777350).

Almost surely, 2^{154102135451644} is an apocalyptic number.

It is an amenable number.

154102135451644 is a deficient number, since it is larger than the sum of its proper divisors (119890781861156).

154102135451644 is a wasteful number, since it uses less digits than its factorization.

154102135451644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1372062 (or 1372060 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 46.

It can be divided in two parts, 154102 and 135451644, that added together give a triangular number (135605746 = T₁₆₄₆₈).

The spelling of 154102135451644 in words is "one hundred fifty-four trillion, one hundred two billion, one hundred thirty-five million, four hundred fifty-one thousand, six hundred forty-four".