154137039834561 has 16 divisors (see below), whose sum is σ = 234887602495488. Its totient is φ = 88073766018000.

The previous prime is 154137039834551. The next prime is 154137039834571. The reversal of 154137039834561 is 165438930731451.

It is an interprime number because it is at equal distance from previous prime (154137039834551) and next prime (154137039834571).

It is not a de Polignac number, because 154137039834561 - 2⁵ = 154137039834529 is a prime.

It is a super-2 number, since 2×154137039834561² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 154137039834495 and 154137039834504.

It is not an unprimeable number, because it can be changed into a prime (154137039834551) 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, 188852215 + ... + 189666636.

It is an arithmetic number, because the mean of its divisors is an integer number (14680475155968).

Almost surely, 2^{154137039834561} is an apocalyptic number.

It is an amenable number.

154137039834561 is a deficient number, since it is larger than the sum of its proper divisors (80750562660927).

154137039834561 is a wasteful number, since it uses less digits than its factorization.

154137039834561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378538252.

The product of its (nonzero) digits is 32659200, while the sum is 60.

The spelling of 154137039834561 in words is "one hundred fifty-four trillion, one hundred thirty-seven billion, thirty-nine million, eight hundred thirty-four thousand, five hundred sixty-one".